5.英语转换句子的题目1.the students were busy with the cleaning when the teacher came inthe students were ___ ___ their classroom when the teacher came in.2.Last Sunday,we heard them sing Pking Opera in the theatre.They were heard ___ ___ Pek

Question

5.英语转换句子的题目
1.the students were busy with the cleaning when the teacher came in
the students were ___ ___ their classroom when the teacher came in.
2.Last Sunday,we heard them sing Pking Opera in the theatre.
They were heard ___ ___ Peking Opera in the theatre last Sunday.
3.It took him two hours to play with computers last night.
He ___ two hours ___ with computers last night.
4.Both he and his deskmate have passed the exam.(改为否定句）
___ he ____ his deskmate _____ passed the exam.
5.He turned on the lights half an hour ago.
The lights ____ ____ ____ for half an hour.

Answer 1

1.busy cleaning be busy with sth 可以转换为be busy doing sth 意思都是"忙着做某事“
2.to sing
3.spent playing it takes(took)sb some time to do sth 可以转换为 sb spend（spent)some time doing sth .注意时态.
4.Neither nor have both and 的否定为neither nor
5.has been on turn on 是瞬时动词 不能接for 时间短语.所以要换成 be on 延续性的.