I would be grateful if you would _______ receipt of this letter.

A. admit　　 　　　　　　　　　　　　　　　　 　 B. acknowledge　　

C. accept D. inform

I’m an operating engineer, running crane(起重机) in New York City. I was in the countryside, playing golf when we got the call that a plane had   36  the World Trade Centre. We checked out of the hotel immediately and started   37  our way downtown. When I got home, I called the rescue center and they told me to come   38  and get on the   39  list.
The next morning I went down to the   40  at about 5 A. M., and four hours later I   41  the call to come down to West Street. I called my wife and told her not to   42  me, and that I would stay in   43  with her. I took the subway. It stopped at West Fourth Street, so I had to   44  the rest of the way.
And somewhere in there I became   45  when I went into something I   46 . I once worked there in 1966 for the   47  of the World Trade Centre. On halfway on September 12, I was frightened to see the World Trade Centre was a huge pile, maybe ten   48  tall. And it was burning. I started to ask   49  in which my crane might be   50  a whistle blew suddenly warning us of some danger. I saw people running away and I really didn’t know what to do. So I did the same, too. It was as if they had   51  the bulls go in Spain and we were running through the street. People falling down, people   52  them up as they came by, and carrying them, just to get them out of the way, because something was extremely   53 . I didn’t even look back. We stopped running when we got to the Battery Tunnel, and I caught my   54  and said, “Oh, my God, I’m going to die.”
Then I 55  a little bit, thinking about what we should do next. As we started again we knocked into a fire chief officer and we asked, “What can we do to help you?”

“Would you have told him the answer had it been possible?”

“I would have, but I ＿＿＿＿so busy then.”

A. had been     B. were     C. was     D. would be

 If I _______ you would drop in，I would have stayed home, waiting for you.

［2011绍兴高三检测］

A. have known                                          B. knew

C. would know                                         D. had known

The train arrives in Liverpool at 10 p.m. tonight . The plane I would like to take from there _______by then.