（题文）You will cut your problem in ________ half if you'd like to share it with others.

A. a B. an C. the D. /

—You look worried，Laura.What's wrong?

—I have some problems ________ my schoolwork.

A. for B. of C. with D. at

We advise parents ________ their children at home alone in order to keep them away from danger.

A. not leave B. not to leave C. leave D. to leave

—You look so________．What's wrong?

—My clothes are out of style.

A. funny B. trendy C. serious D. upset

____， he passed the exam.

A. By the end B. At the end C. In the end D. On the end

It will cost you much money _______ you travel around the world by air.

A. or B. so C. but D. if

They _______ at home if it _______ tomorrow.

A. will stay; is going to rain B. stay; is going to rain

C. will stay; rains D. will stay; doesn’t rains

Jim says he will travel _______ the world if he makes enough money.

A. in B. around C. of D. by

—Does Miss Black have much _________ of teaching?

—Of course. She is a teacher for 10 years.

A. service B. advice C. information D. experience

Bruce was so _________ that he left his English book at home.

A. lucky B. unlucky C. careful D. careless