Tom didn"t go to school_______ this morning because he overslept.A．at once B．on

题型：不详难度：来源：

Tom didn"t go to school_______ this morning because he oversle

pt.

A．at once

B．on time

C．by accident

D．at present

答案

解析

考查词语辨析。at once “立刻；马上”；on time“按时”；by accident“偶然”；at present“目前;现在”。句意为“汤姆今天早晨没有按时上学，因为他睡过了头”故选B.

举一反三

_______ our surprise,the twin sisters went to Peking University at the same time last year.
A.With B.In C.To

题型：不详难度：| 查看答案

Miss White doesn’t like buying nice clothes.She likes collecting story-books ________.
A.instead B.either C.too

题型：不详难度：| 查看答案

—I’m not sure when the 6^th national population census(人口普查)completed?
—_______ November, 2010.

A．On

B．In

C．At

D．Of

题型：不详难度：| 查看答案

－Oh, so many people in the park?
－Nobody likes to stay at home ______ Sunday morning.
A. in B. on C. at

题型：不详难度：| 查看答案

We should protect the animals ______danger.

A．on

B．in

C．of

D．at

题型：不详难度：| 查看答案