Exercise 3. Look at the textbook and decide if the -ing forms in these sentences are gerunds, present participles or adjectives. Write g, pp or a.
1 PCs generate graphics by performing mathematical calculations on data.
2 Businesspeople use graphics to make information more interesting
visually.
3 Graphs and diagrams can be more effective ways of communicating with clients than
lists of figures.
4 She is designing a logo for the company.
5 If you need to make a presentation, I suggest using PowerPoint.
6 The Internet is a network linking other networks.

1. Tom was with his girlfriend last week .

2. She has already done all the exercises.

3. My aunt was married last year. She had a very big wedding.

4. You have not sent me that important email yet.

5. Erin introduced me to her friend Max yesterday.

6. I have not eaten dinner yet

Explanation:

-Past Simple-

pattern :

verbal sentences

(+) Subject + verb 2 + object

(-) Subject + did + not + verb 1 + object

(?) Did + subject + verb 1 + object + ?

nominal sentences

(+) Subject + was/were + complement

(-) Subject + was/were + not + complement

(?) Was/were + subject + complement + ?

×Subject×

Was >>> He, she, it

Were >>> I, you, we, they

-Present Perfect-

pattern :

(+) Subject + has/have + verb 3

(-) Subject + has/have + not + verb 3

(?) Has/have + subject + verb 3

hope it helps

Task 1.

1. It has been raining for two hours.

2. I have been learning Spanish since December.

3. Ann has been looking for a job for six months.

4. Mark has been working in London since last year.

5. They have been living in this house for two years.

Task 2.

1. How long has it been raining?

2. How long have you been learning Spanish?

3. How long has Ann been looking for a job?

4. How long has Mark been working in London?

5. How long have they been living in this house?

Task 3.

1. I have been going to school for nine years.

  I have been going to school since 2008. (возможные вариант)

2. I have been learning English for two years.

   I have been learning English since 5th grade. (возможные вариант)