问题描述：
1.The population of Shanghai is ________than__________Tianjin.
A.larger,in B.larger,that of C.much more,that in D.bigger,it is in
2.You can ask for help ______ you need.I will try my best to help you.
A.whether B.however C.until D.whenever
3.The most interesting thing _________ him is to talk with his students.
A.for B.of C.with D.by
顺便说一下,为什么这么选!
A.larger,in B.larger,that of C.much more,that in D.bigger,it is in
2.You can ask for help ______ you need.I will try my best to help you.
A.whether B.however C.until D.whenever
3.The most interesting thing _________ him is to talk with his students.
A.for B.of C.with D.by
顺便说一下,为什么这么选!
问题解答：
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