同义句转换(英语)

1.I'm not sure what I can buy for my mother.
I'm not sure ____ _____ _____for my mother.

what to buy

2.At last,he worked out the math problem.
____ ____ _____ ,he worked out the math problem.

At the end

3.she often laughs at her brother .
she often ____ ____ ____her brother.

makes fun of

4.Most of his questions are not about his lessons.
Most of his questions ____ ____ ____ ____ ____ his lessons.

has nothing to do with
5.when he was 18,he went to Qinghua University.
____ ____ ____ ____18, he went to Qinghua University.

At the age of

1.what to buy

2.In the end

3.makes joke on

4.

5.At the age of