Ex.1

a) am

b) is

c) are

d) aren't

e) isn't

f) aren't

Ex 2

1) reading, watching, sending

2) having, taking, writing

3) chatting, shopping, swimmimg

I am

he/she/iit is

They are

--------------------------------------------------

You aren't

isn't

We aren't

-----------------------------

chatting  having reading sending shopping  swimming taking watching writing

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2 правильно

3 plaing=> playing

4 putting

5 true

6 true

7 true

8 we ARE waiting

9 writing

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3 нету вариантов:)

4 смотри 3

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I can not talk now. We are having dinner

My brother is playing  football

They are shopping

My sister is buying a present

We are watching an adventure film on TV