Jack felt unhappy as they all went outing （）him.

单项选择题As time went by, the plan stuck （）fairly practical.

A. to proved
B. to proving
C. proved
D. to be proved

单项选择题—Tom, you are caught late again. —Oh,（）

A. not at all
B. just my luck
C. never mind
D. that's all right

单项选择题The little girl couldn't work the problem out. She wasn't （）clever.

A. that
B. much
C. enough
D. too

单项选择题—Did your sister pass the exam —She failed and is in low spirits. —I'm sorry for her. —（）.

A. Thank you
B. You're welcome
C. I would think so
D. Never mind

单项选择题—What do you think of the concert —I really enjoy it. I didn't expect it was （）wonderful.

A. as
B. more
C. most
D. very

单项选择题More than one （）the people heart and soul.

A. official has served
B. officials have served
C. official has served for
D. officials have served for

单项选择题The police have （）power to deal with such matters by （）law.

A. the the
B./ /
C./ the
D. the /

单项选择题Listen! His family must be quarrelling, （）

A. mustn't it
B. isn't it
C. aren't they
D. needn't they

单项选择题That she hadn't kept her（）on her work resulted in the failure.

A. head
B. heart
C. brain
D. mind

单项选择题科学知识再生产的主要途径是( )。