He was busy writing a story, only ______ once in a while to smoke a cigarette.A．

题型：不详难度：来源：

He was busy writing a story, only ______ once in a while to smoke a cigarette.

A．to stop

B．stopping

C．to have stopped

D．having stopped

答案

解析

句意：他忙着编故事，偶尔停下来吸只烟。此题容易错选A。但only to do 表结果，人、而根据题意可知，此处表伴随且stop 几乎与was busy 同时发生，故用B，而having stopped 表示此动作限于谓语动词发生，与题意明显不符。

举一反三

I know a little bit about Italy as my wife and I ________ there several years ago.

A．are going

B．had been

C．went

D．have been

题型：不详难度：| 查看答案

The problems at the meeting tomorrow are really hard to solve．

A．discussed

B．to discuss

C．to be discussed

D．discussing

题型：不详难度：| 查看答案

Jane was asked a lot of questions, but she didn’t answer ______ of them.

A．other

B．any

C．none

D．some

题型：不详难度：| 查看答案

—Shall we go out for a walk?
—Sorry. This is not the right ____ to invite me. I am too tired to walk.

A．moment

B．situation

C．place

D．chance

题型：不详难度：| 查看答案

The young man made a ______ to his parents that he would try to earn his own living after graduation.

A．prediction

B．promise

C．plan

D．contribution

题型：不详难度：| 查看答案