2.3 Put the verb into the correct form, present simple or past simple, active or passive. 1 It's a big factory. Five hundred people are employed (employ) there.
2 Did somebody dean (somebody / clean) this room yesterday?
3 Water
(cover) most of the earth's surface.
4 How much of the earth's surface
(cover) by water?
5 The park gates
(lock) at 6.30 pm every evening
6 The letter
(send) a week ago and it (arrive)
yesterday.
7 The boat hit a rock and
(sink) quickly. Fortunately everybody
(rescue)
8 Robert's parents
(die) when he was very young He and his sister
(bring up) by their grandparents
9 I was born in London, but I
(grow up) in Canada.
10 While I was on holiday, my camera
(steal) from my hotel room.
11 While I was on holiday, my camera
(disappear) from my hotel room.
12 Why
(Sue / resign) from her job? Didn't she enjoy it?
13 Why
(Ben / fire) from his job? Did he do something wrong?
14 The company is not independent. It
(own) by a much larger company.
15 I saw an accident last night. Somebody
(call) an ambulance but nobody
(injure), so the ambulance
(not/need)
16 Where
(these pictures / take)? In London?
(you /take) them, or somebody else?
17 Sometimes it's quite noisy living here, but it's not a problem for me -
|
(not/bother) by it.​

Я так поняла, что 1 и 2 - это примеры, но на всякий случай:

1) are employed

2) did somebody clean..

3) Water covers most of the Earth's surface.

4) how much of the Earth's surface is covered by water?

5) The park gates lock at 6.30 every evening.

6) The letter was sent a week ago and it arrived yesterday.

7) The boat hit a rock and sank quickly. Fortunately everybody was rescued/ rescued.

8) Robert's parents died when he was very young. He and his sister were brought up by thier grandparents.

9) I was born in London, but I was grown up in Canada.

10) While I was on holiday, my camera was stolen frommy hotel room.

11) While I was on holiday, my camera disappeared from my hotel room.

12) Why did Sue resign from her job?

13) Why was Ben fired fromhis job?

14) It is owned by a ..

15) Somebody called an ambulance, but nobody was injured, so the ambulance wasn't needed.

16) Where were these pictures taken? Did you take them...

17) I am not bothered by it.

Объяснение:

так, у меня сомнения вызывает только 7 предложение, поскольку не совсем понятно, их или они сами . Если мы делаем что-то сами - это активный залог. Если делают с нами  - пассивный. Пассивный залог строится be+ глагол ed (если глагол правильный), если неправильный, то смотрим третью колонку неправильных глаголов.