I _____ along the pavement yesterday when some stranger came up and asked me the way to the nearest hospital.
A. am wandering B. was wandering
C. has wandered D. had wandered
Zhang Heng, one of _____ best-known Chinese astronomers, showed a strong interest in _____ astronomy as a child.
A. the; the B. the; 不填 C. 不填; the D. 不填; 不填
Samuel was _____ why few of his friends attended his birthday party.
A. spotted B. crashed C. puzzled D. limited
_____ life exists on any other planet in the solar system still remains a question.
A. Why B. Whether C. How D. Where
Later, the naughty boys _____ to the English teacher for having played a trick on her the other day.
A. apologized B. introduced C. reminded D. stared
The company is deep in _____, so you’d better avoid dealing with it.
A. benefit B. thought C. debt D. strength
