题目内容
16．Mr．Black used to be busy．But now he's tired and ，so he has plenty of time to exercise．（ ）| A． | hard | B． | calm | C． | free | D． | nervous |
分析 Mr．Black 过去一直很忙．但是现在他很累又有时间，因此他有足够的时间去锻炼．
解答 本题是区分几个形容词的意思，hard是努力的或困难的，calm是镇定的，free是空闲的，nervous是紧张不安的，根据he has plenty of time to exercise可以知道，他现在有时间去锻炼，故选C．
点评 本题考查的是几个形容词的词义辨析，了解掌握词义是做题的关键，另外此类题目，一定要注意语境的设置．
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