Our house is on the top of the hill, and in winter the winds 　　　 be pretty cold .

A. must　 　 B. can　 　　C. ought to 　　 D. need

—Thank you for your wonderful meal.

　 —______.

　　 A. No, it was just so-so　 B. The same to you

　　 C. No, that’s all right　 D. It’s my pleasure

—My teacher says she’s canceling the class play. I just can’t understand.

—____ .You were looking forward to it.

A.It doesn’t matter　　　　　　 B.It’s very unwise of her　

C.Don’t worry about it　　　　 D.You must be disappointed

Gathering clouds　　　　 the coming storm．

A. declared　　 　　　B. turned out　　　　 C. connected　 　 D. announced

Alice, bent ______ losing weight, increased the time of exercise to three hours ______ a time.

A. on; at　　 　 　　B. on; for　　 　　　 C. with; for　　 　　D. with; at

The research he devoted all his time and energy to _______ in the end.

A. succeeded B. succeed C. succeeding D. be successful

I don’t know what the signal “X” _______ on the road. Could you tell me?

A. stands　　 　 B. refers to 　　　 C. means　　 　 D. stands for

He has got himself into a dangerous situation ____ he is likely to lose control over the plane.

　　A.where 　　　B.which 　　　C.while 　　　　D.why

It took the firemen three hours to rescue the students trapped in the burnt building.