Question

he cooked them （for a long time） until they were crispy？对括号内提问

The traffic policeman asked me：“are you old enough to drive a car?”改间接引语。
A customer in the restaurant where Georage worked sent back （his plate of fried potatoes）对括号内提问

she was silly.and she did not follow his advice(同义句）
It __ silly__ ___not to follow his advice

Answer 1

为你解答。
1、He cooked them （for a long time） until they were crispy？对括号内提问
How long did he cook them until they were crispy?

2、The traffic policeman asked me：“are you old enough to drive a car?”改间接引语。
The traffic policeman asked me if (或whether) I was old enough to drive a car.

3、A customer in the restaurant where George worked sent back （his plate of fried potatoes）对括号内提问
What did a customer in the restaurant where George worked send back?

4、She was silly.and she did not follow his advice(同义句）
It （was） silly （of her） not to follow his advice

Answer 2

How long did he cook them until they were crispy?
The traffic policeman asked me whether I was old enough to drive a car.
What did a customer in the restaurant where George worked send back?
It was silly of her not to follow his advice.