I haven't ________ to the Great Wall yet. （   ）

A．been

B．gone

C．went

D．go

用所给单词的适当形式填空。
【小题1】Water is very________(use).
【小题2】We use wood________(make) chairs.
【小题3】Trees help________(keep) the air clean.
【小题4】________(protect) the Earth, we should________(save) water.
【小题5】Look! They________(do) a project.
【小题6】Please tell________(they) about Christmas.
【小题7】He starts________(sing).

We’ve _____ Lingling’s report.   (   )

A．got

B．get

C．have

–Where’s Jim? 
–He ________to England. (    )

A．has been

B．have been

C．has gone

用下列动词的适当形式填空。
【小题1】He told me that he_____(visit) the Summer Palace the next day.
【小题2】—Who has borrowed the dictionary? I want to use it.
—Miss Li. She_____(keep) it for a week.
【小题3】The old man_____(die) last summer. He_____(die) for eight months.
【小题4】Father_____(cook) when I got home.
【小题5】Mr. Smith told us he_____(show) the guests around the factory.
【小题6】In winter when your clothes_____(wash), it is not easy to get them dry.
【小题7】—_____the twins_____(return) yet?
—Yes. They_____(have) a rest in the room now.
【小题8】It_____(rain) but it_____(stop) now.
【小题9】All the children_____(keep) quiet though their teacher was not there.
【小题10】The boy_____(read) a story book now.