Passive Voice. Active or Passive

Choose the appropriate answer in PASSIVE VOICE:

The first television programmes (show) at the beginning of the 20^th century.

He says the new book (discuss) in room 15 now.

Air pollution (cause) by exhaust fumes and industry every day.

Many new buildings (built/already) in this street.

The contract (not sign) next week.

He (introduce) to me before I met you.

These exercises (not do) yesterday.

This book (finish) by next Wednesday.

Water bodies (contaminate) with great amount of industrial waste every day. 

His new collection of poems just (publish).

Complete the following sentences. Choose appropriate answer in PASSIVE or ACTIVE VOICE:

That picture …………………. by her grandmother.

I knew why I …………………. by them to that job.

 Every day people …………. kilometers of rainforests , and it is one of the biggest ecological problems nowadays.

….. you…... your home assignment for today?

The factory …. still ……….. when we came to that place.

 A review of the performance ………… after the first night.

I …………………. him ten thousand pounds last year.

Even nowadays not everyone ………..English.

Greenhouse gases ………. heat from escaping from the Earth.

……..this problem…… by the government yet?