句型转换。
1. Harvey had a great time at Water World last Sunday. (改为同义句)
Harvey at Water World last Sunday.
2. I spent two hours cleaning my room yesterday.(改为同义句)
It _ me two hours _ my room yesterday.
3. I have been studying English for four years.(对画线部分提问)
have you been studying English?
4. He has never been to New York. I have never been there,either.(改为同义句)
He has never been to New York, and _____ _____I.
5. The weather here is fine from January to December. (改为同义句)
The weather here is fine _____.
6. His sister went to Beijing last March and last October.
She went to Beijing again last month.(改为同义句)
His sister has been to Beijing _____ since last March.
7. I have been to the Space Museum.(对画线部分提问)
_____ You_____to?
8. Neither this answer nor that one is right.(改为同义句)
_____ __ the answers _ right.
后再加满水，再倒出
后仍用水加满，再倒出
后还用水加满，这时瓶中溶液的酒精浓度是（）。