Don't stop ________ you meet with a word you don't understand.
A.at the time B．each time
C．by the time D．Sometimes
I would appreciate if you can keep an eye on my dog while I am away.
A. you B. that C.不填 D. it
The boy failed four times, but he said he would try ___________.
A．a five time B．a fifth time
C．the five time D．the fifth time
The band ________ in about 1970, but happily they reunited in the mid-1980s.
A.broke up B. broke in
C. broke out D. broke down
— Dad, would you please buy some strawberries for me? I love them.
— I'd like to, but they are not _____ in winter.
A. accustomed B. convenient
C. casual D. Available
—Do you know where David is? I couldn't find him anywhere.
—Well, he ______ have gone far—his coat's still here.
A. shouldn't B. mustn't C. can't D. wouldn't
