Question

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S.W
XXII. Put the verb in brackets in the correct tense-form:

1. "You ever (to see) any plays by O. Wilde?” “Yes, I (to see) one last
week."

2. He (to graduate) from the University in 1999.

3. By 5 o'clock they (to
complete) their experiment and left the laboratory.

4. By the end of the next
week they (to receive) final results on the concentration of smoke in the air.

5. At last we managed to learn what (to happen) as a result of ozone depletion.

6. When we arrived, the conference (not to begin) yet.

7. It was five to ten a.m. The exhibition (not to open) yet but all the preparations for the opening ceremony (to be made).

8. I am sure by that time new methods of environmental protection (to be developed).

9. Before we joined “the Green Party", many laws and decisions on this problem (to be adopted).

10. Much more people (to be involved) in various international organizations and “green parties” by the end of the century.

Answer 1

Ответ:

1 saw

2graduated

3 completed

4 received

5 happened

6 didnt to begin

7didnt open

8 was developed

9 was adopted

10was involved

Объяснение: