John opened the door . There _____ he had never seen before. A.a girl did stand B. a girl stood C.did a girl stand D. stood a girl

What________you________lastweek?I________somereading. A: did;did;did B: do;do;do C: did;do;do D: did;do;did

We failed to catch the train, ______. A: so they did B: so did they C: nether they did D: so they did so did they nether they did neither did they

We failed to catch the train, ______. A: so they did B: so did they C: nether they did D: A. so they did B. so did they C. nether they did D. neither did they

Only after I had reached the airport _______ that I had forgotten to take my ticket with me． A: A．I realized B: B．have I realized C: C．did I realize D: D．I had realized

The couple their old house and sold it for a vast profit. A: did fo B: did in C: did up D: did with

-He said he enjoyed the quiet life of the country. -__________ and __________ . A: So did he; so did I B: So he did; so did I C: He did so; I did so D: Did he so; so I did

The couple ______ their old house and sold it for a vast profit. A: did for B: did in C: C. did up D: D. did with

Are you interested in _____? A: how did he do it B: he did it how C: how he did it D: he how did it

He did not deny, （） admit, having made any statement to that effect. A: nor did he B: so did he C: either did he D: also did he