Question

this was(a) the first time

This was the first time the students ______ to Hyde Park．（　　）

A. have gone

B. have been gone

C. have been going

D. had gone

Answer 1

答案是D．本题考查句型"It's the first time that"的变体．该句型中从句的动词必须要现在完成时．注意，其中的It 可以换用This；其中的序数词可以换用其它的序数词；如果把句中的is改成was，从句中必须要过去完成时；所以答案是D．注意区分：如果没有序数词，这时就应该是句型"It's/was time that"，这时从句中往往用过去时，也可以用"should+动词原形"．