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1.We had already been working for 30 minutes when my mother ____ home.
a) cameb) comesc) will comed) is coming
2.She knew that her mother _____ as a doctor for 5 years by that time.
a) has been workingb) has worked c) had being workedd) had been working

3. When Alice came home, her friends … already … for her for half an hour.
a) haved…been waiting b) were…waiting
c) had…been waiting d) were…been waiting
4. What … you … at 5 p.m. yesterday?
a) were…doing b) was…doing c) had…doing d) been … doing
5. How long … in Kyiv before you moved to Melitopol?
a) were you living b) had you been living c) you had lived d) you had been living
6. Nobody … while he … his presentation.
a) was talking…was showing b) talked…showed c) was talking…showed
d) talked…was showing
7. By the time he found his girlfriend, he … for her in the park for an hour
a) looking b) had looking c) had been looking d) was looking
8. When I phoned him yesterday, he … a shower and didn't hear my call.
a) took b) was taking c) have been taking d) had been taking
10. At ten o'clock yesterday the children … and couldn't break your bike.
a) were sleeping b) was sleeping c) slept d) had been sleeping