34.---You may find the key to the maths problem on page 107 . ---Ah, it’s so sim

题型：不详难度：来源：

34.---You may find the key to the maths problem on page 107 .
---Ah, it’s so simple . I wonder why I___________of that .

A．hadn’t thought

B．haven’t thought

C．didn’t think

D．wasn’t thinking

答案

解析

略

举一反三

31. How to solve the problem __________ in the meeting right now

A．was being discussed	B．are being discussed
C．is being discussed	D．is going to discuss

题型：不详难度：| 查看答案

33. Nowadays, use____of certain waste materials to protect the environment.

A．is making

B．will make

C．is being made

D．will be made

题型：不详难度：| 查看答案

19．—Flight 331 _____．I"d better be on my way．Goodbye．
—Bye．Happy landing!

A．is announced	B．is being announced
C．is announcing	D．has announced

题型：不详难度：| 查看答案

--- Are you _______ me of lying to my parents?
--- I’m sure you did.

A． accusing

B． scolding

C． reminding

D． telling

题型：不详难度：| 查看答案

--- Excuse me, I was told I could find Professor Li here.
--- And you ______. Anything I can do for you?

A． have

B． had

C． did

D． do

题型：不详难度：| 查看答案