第9题: [单项选择]______ for a person who has more problems than you do. A. Not try to work B. Try not to work C. Trying not to work D. Not trying to work 参考答案:B 答案解析:首先,本句是祈使句。所以,答案是B。而A句正确的语法表达(但是意义仍然不正确)应该是 don't try to..。C句D句都是非谓语短语,是不完整的句子。一般地来说,非谓语动词的否定式是not放在