My parents don’t mind what job I do _____ I am happy.
A. even though       B. as soon as        C. as long as     D. as though

–You couldn’t have chosen any gift better for me. -- ____________.

A. Oh, it’s really kind of you.

B. That’s all right. I’ll give you a better one next time.

C. I’m glad you like it so much.　 D. You have a gift for music, don’t you?

The__________ (operate) put me through within 10 seconds.

The couple had quarreled all time before they _______their engagement.

A. broke down　　　　 B. broke through　　 C. broke off　　 D. broke out

Her brother ______ be at home now, because he was seen playing basketball in the stadium just now.

　　 A. mustn’t　　　 　 B. needn’t　　　　

　　 C. can’t　　　　 　 D. shouldn’t

Although punctual himself, the professor was quite used ________ late for his lecture.

A. to have students B. for students' being

C. for students to be D. to students' being

Small sailboats can easily turn over in the water ______ they are not managed carefully.

A. though　　　　 B. before　　　　　　　 C. until　 　　　　　　 D. if

New medicines and instruments ______ every day to extend life.

A. develop　　　　　　　　　 B. are being developed

C. are developing　　　　　 D. have developed

He get into the habit of ___________ （背誦）.

—I had a really good weekend at my uncle’s

—　　 .

　 A．0h．that’s very nice of you　　　 B．Congratulations

　 C．It’s a pleasure　　　　　　　　 D．0h，I’m glad to hear that