20 Баллов!!!!
1. Find the defi nitions and match.

1) cause a) a fact which is put forward as a motive

2) reason b) that / which makes a thing happen

3) effect c) the result

2.Choose the correct form of the verb.

1. The number of days in a week is/are seven.

2. A number of streets in our city is/are still known by their old names.

3. The number of workers in our group at the camp was/were six

1 cause -  b, 2 reason - a, 3 effect - c

1 is ; 2 are ; 3 was