помогите, пожалуйста, очень надо...

I'll be back...half an hour

a/ at

b/ for

c/ in

d/ till

10. Harry is looking...a job. He wants to work in a hotel

a/ for

b/ about

c/ -

d/ through

11. He...swim very well when he was young

a/ can

b/ could

c/ may

d/ ought to

12. Nobody...went to the concert enjoyed it very much

a/ what

b/ who

c/ which

d/ whom

13. Закончите вопрос

The family likes to watch TV in the evening,...it

a/ didn't

b/ doesn't

c/ wasn't

d/ won't

14. Выберите правильный ответ

We buy...bread from a bakery near our house

a/ the

b/ -

c/ a

d/ any

15. The two men are in Germany...

a/ on business

b/ in busuness

c/ by business

d/ business