He looked at the envelope(信封) and _____ Jenny’s handwriting immediately.
A. realized B．recognized C．reminded D．remembered
American English has changed _______ the centuries. There are several reasons _____ this.
A. over, for B. for, with C. in, of D. during, about
The little boy fell asleep while ______TV. So his mother sent him to bed at once.
A. watched B. to watch C. was watching D. watching
---Look! The telephone is broken. Someone damaged it ________ purpose.
---That may be right. But perhaps it was broken _________ accident.
A. on; by B. by; by C. on; on D. by; on
Recently our government policymakers are very ______ about the rapidly rising food cost.
A. satisfied B. concerned C. angry D. confused
Many people agree that______ knowledge of English is a must in______ international trade today.
A. a; 不填 B. the; an C. the; the D.不填；the
