1．Jack, can you help with the dinner? Jack's mother asked.(改成间接引语）    

1．"Jack, can you help with the dinner?" Jack's mother asked.(改成间接引语）

       Jack was asked ______________he ______________help with the dinner.

2． Peter does well in basketball. He does well in football, too.(合并成一句）

    Peter does well in ______________basketball ______________football.

3．The girl didn't know where he could find her mother.(改成简单句）

     The girl didn't know where______________    ______________her mother.

4．He forgot to turn off the light and left.(同义句转换）

     He left ______________the light______________.

5．We should allow the students to tell their own ideas.(改成被动语态）

The students should______________      ______________to tell their own ideas.

1．if/whether; could 

2．both; and 

3．to find 

4．with: on 

5．be allowed

【解析】

1.宾语从句的用法，引语部分是一般疑问句，所以要用if/whether来引导。如果主句是一般过去时，宾语从句要用过去的时态，在此用过去式形式。

2. both A and B“ 两者都”

3.由特殊疑问词做连接词引导的宾语从句，在换成简单句时，使用连接词＋不定式。

4.使用介词短语做伴随状语。

5.情态动词的被动语态。