David had prepared carefully for the chemistry exam, as he wanted to be sure of passing it at the first _____.

A. experiment B. intention C. aim D. attempt

People are advised to lay particular ____ the need of a balanced diet and proper exercise.

A. stress onB. importance of C. stress toD. attempt at

It is reported that the number of students_______ computer games has been on the increase in recent years.

A. devoted toB. related to C. connected to D. addicted to

Every year, _____ energy is spent on environment protection.

A. large quantities of B. a good many

C. a great deal of D. a plenty of

Eventually, the husband could no longer ______ his wife’s complaints about his inability to make much money, and he divorced her.

A. come up with B. put up with C. stand up with D. bear up with

Waves of red light are about twice as long as _______ of blue light.

A. those B. that C. it D. Ones

It is _____ he often fails in exams _____ makes his parents worried about him.

A. what; thatB. that; whatC. that; thatD. /; that

______ I have made great progress in my spoken English, I can not express myself freely.

A. In spite ofB. Even though C. As though D. Despite

It was______ back home after the experiment.

A. not until midnight did he goB. until midnight that he didn’t go

C. not until midnight that he wentD. until midnight when he didn’t go

I don’t think the color of the curtains ______ the color of your room perfectly.

A. fixes B. fits C. suits D. appropriates