Supply the corect tense or form of the verb in parentheses

I.             Supply the corect tense or form of the verb in parentheses.

1.    Quang (not/ play) any sports. He’s reserved, too.                                …………………………

2.    When my brother and I (be) small, we often went swimming.          …………………………

3.    If I meet him tomorrow, I (tell)  him the truth.                                    …………………………

4.    Water (cover) most of the Earth’s surface.                                           …………………………

5.    Trang (not / be) in her room now. She (cook) in the kitchen             …………………………

6.         Someone (knock) at the door. Can you see who it is?                       …………………………