用括号内所给词的适当形式填空。

It's a ________ (please).

用括号内所给词的适当形式填空。

Please give the knife to ________ (I).

用括号内所给词的适当形式填空。

I think this pen is ________ (she).

The beautiful house was ______ (build) 100 years ago.

There has been a great deal of ______ (ill) in those villages.

He asked what he should do with the boy's ______ (ill).

Bees are very ______ (use) to us.

Our League meeting will ______ (hold) tomorrow morning.

I haven't got much ______ (time). Please be quick.

There are two ______ (blackboard) in the classroom.