Exercise 272. Choose the correct tense past indefinite or present perfect).
1. Since the beginning of the 20h century, scientists (to make) many
important discoveries.
2. I (to learn) to read and write French when I (to be) a child, but now I (to
forget) everything.
3. Science (to advance) a great deal in the 20th century.
4. Last night I (to have) some free time, so I (spend) it on my hobby.
5. Who (to turn on the radio? -Ann (to do) it a few minutes ago.
6. She (to try on) already several pairs of shoes, but she (not to choose) a
suitable pair yet.
7. When I (to be) in Paris, I (to buy) a lot of fashionable dresses.
​

Say what good news the Cat knew.
The Smart Little Bird
There was a little smart Bird in a
 tree. A big grey Cat came to the
 tree. He saw the little Bird and want  to eat her. "I'll have the bird
 for my breakfast, " thought  the Cat.
 "Good morning, Miss Bird," said the Cat.
 "Good morning , Mr Cat," said the Bird.
 "Good news!" said the Cat.
 " What news?" asked the Bird. 
 The Cat said, " Very good news, my little Bird! All animals are good friends now! We are friends: all cats, dogs and birds. Come to me! I want to speak to you."
 But the little Bird was  very smart.
"Of course,you are my friend . But I see many dogs
and they are on their way to this tree."
"Oh, dogs! I must go home!" said the Cat.
"Oh, why, my dear friend? The dogs are
our friends, too," said the Bird.
"I think, they don't know the news,"
 said the Cat and ran away.

There was a little smart Bird in a tree. A big grey Cat came to the tree. He saw the little Bird and wanted to eat her. I`ll have the bird for my breakfast, thought the Cat.
Good morning, Miss Bird, said the Cat.
Good morning, Mr Cat, sayid the Bird.
Good news! said the Cat.
What news? asked the Bird.
The Cat said: Very good news, my little Bird! All animals are birds. Come to me! I want to speak to you. But the little Bird was very smart.
Of course, you are my friend. But I see many dogs and they are on their way to this tree.
Oh, dogs! I must go home! said the Cat.
Oh, why, my dear friends? The dogs are our friends, too, said the Bird.
I think, they don`t know the news, said the Cat and run away.