Nosoonerthemselvesintheirseatsinthetheatrethecurtainwentup.A.theyhavesettled;beforeB.hadtheysettled;thanC.havetheysettled;whenD.theyhadsettled;than要选哪个··和为什么···

Question

No sooner ____ themselves in their seats in the theatre ____ the curtain went up.
A.they have settled;before
B.had they settled;than
C.have they settled;when
D.they had settled;than
要选哪个··和为什么···

Answer 1

答案 B
理由 你哦 no sooner ...than ...是一...就...的意思,是固定的短语.其次,no sooner 在句首要用倒装句型.最后,no sooner 所引导的内容发生在than 所引导的事件之前,是过去的过去,用过去完成时.综上三点,选B.