1.We will observe _____

A.what happened B.what happening C.what happen D.what happens

7. I get up ____ six thirty every morning.

提高能力

6. She will be back ____ three days.

5.The storm went on ______ over three hours

4.May I sit ___the chair.

3.I will bring the CDs____ Danny’s house

1.We are talking ___our plans for the vacation.

you put the water ___the jar?

3.Will the ___(力量) of air keep the water in the jar?

2. We are talking about our___(观察).

1.--Your____(泳衣) is very nice.--Thank you!