把下列简单句改成定语从句1、that is the student .the headmaster praised him at the meeting last week.that is the student （ ）（ ）（ ）（ ）the meeting last week.把下列定语从句改成简单句2、all that I need is your help（ ）i need is your help3、He had a bad cold,because of which he did not attend the meetinghe did not attend the meeting（ ）（ ）a bad cold.
问题描述：
把下列简单句改成定语从句
1、that is the student .the headmaster praised him at the meeting last week.
that is the student （ ）（ ）（ ）（ ）the meeting last week.
把下列定语从句改成简单句
2、all that I need is your help
（ ）i need is your help
3、He had a bad cold,because of which he did not attend the meeting
he did not attend the meeting（ ）（ ）a bad cold.
答
1. who was praised at
2. All
3. because of
答
1.who the the headmaster praised
2.what
3.for having