.Our government took measures in time to protect children who had taken Sanlu baby milk powder         it was too late.

  A now that    B as long as    C unless    D before

Books of this kind ______ well.

A. sell       B. sells       C. are sold    D. is sold

It was so nice to hear from her.             (信不信由你), we last met more than 30 years ago.(believe)

(山东省潍坊市高三教学质量检测) —I like British culture very much, and I once went to London.

   —How long         there?

A. did you stay       B. have you stayed

C. were you staying           D. had you stayed

莉莉不能够忍受像那样被同事嘲笑。

I would have come earlier，but I ________that you were waiting．

A．didn’t know     B．hadn’t  known     C．wouldn’t know    D．haven’t know

The number of people invited ______ fifty, but a number of them _____ absent for different reasons.

A. were, was      B. was, was           C. was, were        D. were, were

Professor Smith, along with his assistants,______ on the project day and night to meet the deadline.

A. work           B. working        C. is working  D. are working

Much to my surprise, the eight-year-old boy _____fixed my computer within ten minutes．

A．skillfully       B．immediately      C．normally       D．nervously

他对他父亲的话确信无疑。