---Who is making so much noise in the garden?
---______ the children.
| A．They are | B．There are | C．It is | D．Those are |
George is going to talk about the geography of his country, but I'd rather he ________ more on its culture.
| A．focus | B．focused |
| C．would focus | D．had focused |
Don't handle the vase as if it ________ made of steel.
| A．is | B．were |
| C．has been | D．had been |
Jack is a great talker. It's high time that he ________ something instead of just talking.
| A．will do | B．has done |
| C．do | D．did |
—Where are the children? The dinner's going to be completely ruined.
—I wish they______always late.
| A．weren't | B．hadn't been |
| C．wouldn't be | D．wouldn't have been |
Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
| A．was | B．be |
| C．were | D．is |