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分析英语语法选择题“Two hours ___ long enough for you to finish your h

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分析英语语法选择题“Two hours ___ long enough for you to finish your homework”
1.Two hours ___ long enough for you to finish your homework.
A.is B.are C.has D.have(正解A)
2.A seven-day holiday _________ long enough to have a good rest and travel the province.
A.is B.are C.has D.have （正解A）
我想知道为什么.这种句型的BE动词什么情况用什么形式?
分析英语语法选择题“Two hours ___ long enough for you to finish your h
这种情况是因为two hours 和a seven-day holiday 表示的都是一个时间段,所以用单数形式.
如果强调的是几个月或几年要用复数.
比如there are 3 days to go.(还剩三天）之类的,就用复数.
分析英语语法选择题“Two hours ___ long enough for you to finish your h Two hours is enough for us to finish the experiment为什么要用介词fo two hours - enough for me to Ten days ().long enough for Mr.Carter to finish his design.H Two days are not enough for me to finish the work.I need ___ two days are not enough for me to finish thework .i need ___ 英语句子成分问题you (are patient) enough to wait for two hours.括号内的语 how soon can you finish this job?two days-enough for me to f （ ）you ( ) ( )( )(finish) your homework in two hours? -How long did you skate?-I skated for two hours. 分析英语语法选择题“what do you prefer,___ or ___ ” Three hours __(be)enough for us to finish the task.