句型转换。

Tom went to the museum．He's still there now．(合并为一句)

Tom ________　________　________ the museum．

句型转换。

I've been to Hong Kong twice．(对画线部分提问)

________　________　________ have you been to Hong Kong?

句型转换。

Mr Lin has already bought another house in town．(改为否定句)

Mr Lin ________　________ another house in town ________．

用所给词的适当形式填空。

It is interesting ________(read)a book on space travel．

用所给词的适当形式填空。

So far we ________(finish)solving all the problems．We can have a good rest．

用所给词的适当形式填空。

These are some ________(photo)of my foreign teachers．

用所给词的适当形式填空。

I ________ just ________(buy)a new MP4．

用所给词的适当形式填空。

He has finished ________(read)this book．

在其他的任何一个星系我们还没有发现生命。

We ________　________ life on ________　________ planet yet．

宇航员已经去过月球了。

Astronauts ________ already ________　________ the moon．