1 he went out of the restaurant without paying the bill.2 She bought a pair of boots instead of getting a pair of shoes. 3 She was afraid of spending the night alone. 4 After hearing/having heard the news, she fainted. 5 Think carefully before answering my question. 6 On seeing the plane coming towards me, I dashed for cover.练习1b 2c 3b 4b 5c 6b 7c 8a 9c 10c 11d 12athink送
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