1,Never before ________in greater need of modern public transport than it is today.A.has this city been is city has been C.was this city is city was2,Professor Smith,along with his assistants,___on the project day and night to meet the deadline.A.work B.working working e working答案为AC,请解释一下为什么,谢谢!
热心网友
A.Never放在前面就是倒装的一个标志.既然是倒装,当然是动词,或至少助动词前置.所以就是has了...c中的was有时也可以前置,因为是be动词,但这里要表达完成时,所以是A.C.Professor Smith,,___on the project day and night to meet the deadline.这个肯定选C.但是现在这个句子还是选C.因为句子的主语还是Professor Smith,along with his assistants并不是主语,只是修饰Professor Smith的(Professor Smith是带着几个助手的0,所以主语是professor Smith,单数,就是C了.当然,如果不是进行时态就是works,但这里没有这个选择.
热心网友
1.A never 倒装的，并且是过完时2.C along with his assistants可不看，主语是,Professor Smith
热心网友
同意楼上的回答。我就加一句吧。 Professor Smith,along with his assistants,___on the project day and night to meet the deadline.中的along with his assistants是一个插入语Professor Smith才是主语，所以C是最佳的答案。