题干
改写句子 按括号中的要求完成句子，每个空格填一个单词。
(1)There is a big lake in the park. (改为否定句)
There____ ____ a big lake in the park.
(2)He has lived in this village for 80 years. (就句子画线部分提问)
____ ____ he lived for 80 years.?
(3)The problem is very difficult. I can't work it out. (改写句子,句意不变)
The problem is ____ difficult for me ____ work out.
(4)"What are you doing ?"My mother asked me. (改写句子,句意不变)
My mother asked me____ I ____ doing .
(5)We shouldn't drop litter anywhere when we visit the interesting places. (改写句子,句意不变)
Litter shouldn't____ ____ anywhere when we visit the interesting places.
答案(点此获取答案解析）
is,not,Where,has,too,to,what,was,be,dropped
6Cu+SO2↑，该反应的氧化剂是 
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