Use the words in brackets in the correct form (Present Perfect, Past Perfect, Present Perfect Progressive and Past Perfect Progressive). 1) Before Mr Lamberty got formal notice, he … (dump) sewage from the Missatonic Factory into the river killing thousands of fish every
year.
2) Tony told the Mayor about his brother, Izzy, and the notes he … (take) for him.
3) Tony showed the Mayor the insects that he... (catch) in the park. "I meant that Saddleboro is not as clean as we think. There must be something wrong to have so many insects.
4) "The air pollution ... (be) zero in Saddleboro for weeks. I don't think you have to worry, " the Mayor said.
5) Tony drew the Mayor's attention to the Robin's behaviour. "He's sick, and he's trying to get away from that big bird, which... (fly) over your house since early morning."
6) "By the way, and this is between you and me, I … (not hear) the spring frogs this year. Are they okay?"
7) "I was surprised to see I … (not mention) frogs after mid-April in my notes. I thought I … (forget) but I guess not. The truth is there are no frogs.
8) "I still think something's wrong in Saddleboro," Tony said, "but I don't know enough to know what it is. What you … (do) for the town so far is right. Izzy said so before he left."
9) "Tony, Cock Robin is dead! Find out who killed him!" "I've no one to accuse. Lamberty's factory … (not dump) chemicals since long before the first egg was laid."

1) Before Mr Lamberty got formal notice, he had dumped sewage from the Missatonic Factory into the river, killing thousands of fish every year.
Explanation: We use the past perfect tense to talk about an action that happened before another past action or time point. In this case, Mr Lamberty had dumped sewage before he received formal notice.

2) Tony told the Mayor about his brother, Izzy, and the notes he had taken for him.
Explanation: We use the past perfect tense to talk about an action that happened before another past action or time point. In this case, Tony had taken the notes before he told the Mayor.

3) Tony showed the Mayor the insects that he had caught in the park. "I meant that Saddleboro is not as clean as we think. There must be something wrong to have so many insects.
Explanation: We use the past perfect tense to talk about an action that happened before another past action or time point. In this case, Tony had caught the insects before he showed them to the Mayor.

4) "The air pollution has been zero in Saddleboro for weeks. I don't think you have to worry," the Mayor said.
Explanation: We use the present perfect tense to talk about an action that started in the past and has a connection to the present. In this case, the air pollution has been zero for weeks and it is still zero in the present.

5) Tony drew the Mayor's attention to the Robin's behavior. "He's sick, and he's trying to get away from that big bird, which has been flying over your house since early morning."
Explanation: We use the present perfect continuous tense to talk about an action that started in the past, is ongoing, and has a connection to the present. In this case, the big bird has been flying over the house since early morning, and it is still flying at the time of speaking.

6) "By the way, and this is between you and me, I haven't heard the spring frogs this year. Are they okay?"
Explanation: We use the present perfect tense to talk about a past action or state that has a connection to the present. In this case, the speaker hasn't heard the spring frogs this year, and it is still the present.

7) "I was surprised to see I had not mentioned frogs after mid-April in my notes. I thought I had forgotten, but I guess not. The truth is there are no frogs."
Explanation: We use the past perfect tense to talk about an action that happened before another past action or time point. In this case, the speaker had not mentioned frogs after mid-April in their notes.

8) "I still think something's wrong in Saddleboro," Tony said, "but I don't know enough to know what it is. What you have done for the town so far is right. Izzy said so before he left."
Explanation: We use the present perfect tense to talk about a past action or state that has a connection to the present. In this case, what the Mayor has done for the town is right, and it is still true in the present.

9) "Tony, Cock Robin is dead! Find out who killed him!" "I've no one to accuse. Lamberty's factory hasn't dumped chemicals since long before the first egg was laid."
Explanation: We use the present perfect tense to talk about an action that started in the past and has a connection to the present. In this case, Lamberty's factory hasn't dumped chemicals since a time long before the first egg was laid.