Раскройте скобки, употребляя глаголы в present continuous или present simple 1)the boys (to be) very quiet. go and see what they (to do) 2) he (to tell) them a funny story right now. 3) listen! l (to think) somebody (to knock) at the front door.

1.The boys are very quiet.Go and see what are they doing.
2. He is telling them a funny story right now.
3. Listen! I think somebody is knocking at the front door.