A. they had arrived
B. they arrived
C. did they arrive
D. had they arrived
[单选题]I was almostasleep last night when I suddenly heard someone _____at the doo
[单选题]H.ardly ______when they ran toward it.A. had the plane landedB. did the plane landC. the plane had landedD. the plane landed
[单选题]When he _________ the door, he found his keys were nowhere.A. would open B. opened C. had opened D. was to open
[问答题]I was having a nap when suddenly the telephone rang.
[问答题]I was having a nap when suddenly the telephone rang.
[问答题]I was having a nap when suddenly the telephone rang.
[问答题]I was having a nap when suddenly the telephone rang.
[单选题]Hardly __________ Edinburgh when__________ to return to London.A.they had r
[单选题]When he the door, he found his keys were nowhere.A. would open B. opened C. had opened D. was to open
[问答题]Hardly had I gone out of the building when it began to rain.