1.Are you doing a test?
2.Is your teacher sleeping?
3.Are your friends studying?
4.Is it raining today?
5.Are your classmates singing?
6.Is your dad working?
12.1 I was ; You can't ; I had
12.2 The music was; The concert had just started; it began
12.3 I have just come;I had; I visited
12.4 I was shopping, I left; I put; I am
12.5 I have graduated; I have thought; I have been organising
We are going to the cinema, aren't we?
How many times you go to school in a week?
Is she a student?
Does she like read books?
Sometimes very cold - иногда очень холодно.
Удачи!
1.a-the.b-a.2.a-a.b-the.3.a-the.b-a.4.a-a.b-the.