[填空题]After they had finished building the lab，the expert inspected it _______________________(以确保工作质量没有问题)．

[填空题]After they had finished building the lab，the expert inspected it _______________________(以确保工作质量没有问题)．

[简答题]Only after they had performed hundreds of experiments _____________________ (他们才成功地解决了这个问题)

[填空题]Only after he had finished watching the football game _________________________ (他才开始写报告).

[填空题]After he had given an account of the difficulties, he went on (suggest)（）ways of overcoming them.

[填空题]After they had worked a few miracles, their imagination increased, and their ambition ________ . (large)

[单项选择]He went back to work after he had recovered from his illness ______ that they had found another person to replace him.
A. had been told
B. being always told
C. only to be told
D. unfortunately told

[简答题]Six months after he had been posted to the head office ______ (他通知老板打算辞职).

[单项选择]What did the man not do after he had crept into the house of Sandra Bayley
A. Brushing his teeth
B. Stealing a toothbrush
C. Taking a cup of tea
D. Taking a hot bath

[单项选择]It was only after he had read the papers（）Mr. Gross realized the task before him was extremely difficult to complete.
A. when
B. that
C. which
D. what

[单项选择]Only after I had reached the airport ______ that I had forgotten to take my ticket with me.
A. I realized
B. have I realized
C. did I realize
D. I had realized

[填空题]After she had the report (type)（）, she put it on the director’s desk.

[填空题]We _____ a grammar lesson after we had a PE class.

[简答题]

Everyone must have had at least one personal experience with a computer error by this time. Bank balances are suddenly reported to have jumped from 379 into the millions, appeals for charitable contributions are mailed over and over to people with crazy-sounding names at your address, department stores send the wrong bills, utility companies write that they’re turning everything off, that sort of thing. 46)If you manage to get in touch with someone and complain, you then get instantaneously typed, guilty letters from the same computer, saying, "Our computer was in error, and an adjustment is being made in your account."
These are supposed to be the sheerest, blindest accidents. Mistakes are not believed to be part of the normal behavior of a good machine. If things go wrong, it must be a personal, human error, the result of fingering, tampering, a button getting stuck, someone hitting the wrong key. The computer, at its normal best, is infallible.