1．The book is too difficult for them to read．（不失原意改写）

The book is _________ _________ _________ _________ _________ _________ ________．

2．After he cleaned up the classroom，he went home．（不失原意改写）

He _________ _________ home _________ he cleaned up the classroom．

3．He said，“I will visit the Summer Palace this summer” ．（不失原意改写）

He said _________ _________ _________ Summer Palace this summer．

4．I really don't know what we should do next．（不失原意改写）

I really don't know _________ _________ _________ next．

5．They are very interested in science．（改为感叹句）

_________ _________ they are in science!

6．They will never see that again．（改为反意疑问句）

They will never see that again，_________ _________．

7．They have been collecting shells for 10 years．（就划线部分提问）

_________ _________ _________ they been collecting shells?

8．I will give him a scarf if I go to the party．（就划线部分提问）

_________ _________ you give him if you go to the party?

9．I think he started to play the piano two years ago．（就划线部分提问）

_________ _________ _________ _________ _________ _________ to play the piano?

10．_________ _________ _________ __________ while you were taking photos?（根据答语写出问句）

They were playing basketball．

1、1．so difficult that they can't read it      2．didn't go，until

3．he would visit                                   4．what to do

5．How interested                                6．will they

7．How long have                                  8．What will

9．When do you think he started                  10．What were they doing