Until the present century, ________ demand for natural gas.A．littleB．and littl

题型：不详难度：来源：

Until the present century, ________ demand for natural gas.

A．little

B．and little

C．there was little

D．was there little

答案

解析

本题实际上考查的是not…until…结构。

举一反三

_______ are the days when the teachers were looked down upon .

A．Gone

B．Go

C．To go

D．Going

题型：不详难度：| 查看答案

It’s the fifth time ______ late this term.

A．that you ’ve arrived	B．that you arrived
C．when you ’ve arrived	D．when you arrived

题型：不详难度：| 查看答案

She can"t help _____ the house because she"s busy making a cake.

A．to clean

B．cleaning

C．cleaned

D．being cleaned

题型：不详难度：| 查看答案

Who did the teacher have ___ an article for the wall newspaper just now?

A．written

B．writing

C．write

D．to write

题型：不详难度：| 查看答案

I"ll come to see you if _____.

A．you"re convenient	B．it is convenient for you
C．you feel convenient	D．it is convenient with you

题型：不详难度：| 查看答案