问题

You may find the key to the math problem on page 107．—Ah, it’s so simpleI wonder why I _of that

A:hadn't thought
B:haven't thought
C:didn't think
D:wasn't thinking

正确答案是：

同类题型

This is my friend. ______ name is Bob.

Jane had just finished her homework ________ her mom asked her to practice playing the violin yesterday

．I just wonder that you don’t want to cooperate with me.

The other day I aletter from my uncle.

Turn on the _____ fan; it’s too hot.— Ok , I will. [ ]