选择填空（）1. I don’t know（）work out the problem . It’s too hard
选择填空
（）1. I don’t know（）work out the problem . It’s too hard
A.when to B.where to C.how to
（）2.There are too many kinds of shirt in the shop . We don’t know （）
A.what to answer it B.which to chooseC.howto answer it
（）3..Mr . Wang didn’t tell me the time whenhe arrived , so I don’t know （）to meet him .
A .where .B.when
C.why
（）4.---- Did he（）you to join the English club to improve English ?
---- Yes , he often gives us some good ()
A.advise , adviceB.advise , advices C.advice , advices