Thefactorymanufacturesa______ofproducts.A.variety　B.mixture　C.quality　D.volume

It‘squite______mewhysuchthingshavebeenallowedtohappen.A.for　B.behind　C.against　D

Beingagoodleader，one______tothinkmoreofothers.A.must　B.may　C.ought　D.should

A visit to a museum contributes to our education. The British Museum is a great

他喜欢开着窗户睡觉。

老师教学生们如何做这个实验。

为了还钱，农民不得不努力工作

许多公司禁止在办公室内吸烟。

这家商店供应所有野营用品。

This machine __________ (operation) night and day.

Weather __________ (permit), we will go climbing this weekend.

The students listened to the class with __________ (concentrate).

The interest is paid __________ (year) or, if you prefer, every six months.

It was a real__________ (accomplish) to carry out the railway project in a month

He covered his head __________ (conscious) with his hands when it started to rai

The local people treated us with __________ (friendly).

__________ (finish) the homework, John went home by bus.

Some drunken men made a great__________ (disturb) in the street last night.

Many people, including college students of all ages, spend little time in pursui

人造的，假的a．a _ _ _ _ _ _ _ _ _

容忍；容许v．t _ _ _ _ _ _ _

介绍，引进v．i _ _ _ _ _ _ _ _

起初的；原作 a.n．o _ _ _ _ _ _ _

相信；信仰n．b _ _ _ _ _

空闲时间；休闲n．l _ _ _ _ _ _