1. It was quiet ________ those big trucks started coming through the town.A. before B. after C. unti

1. It was quiet ________ those big trucks started coming through the town.A. before B. after C. until D. unless
2. It seemed only seconds ________ the boy finished washing his face.A. when B. before C. after D. even if
3. Hardly had he reached the school gate ________ the bell rang.A. while B. when C. as D. as soon as
4.We were told that we should follow the main road _____ we reached the central railway station.A. whenever B. until C. while D. wherever
5. I recognized you ________ I saw you at the airport.A. the moment B. while C. after D. once
6. He was about to go to bed ________ the doorbell rang.A. while B. as C. before D. when
7.________I listen to your advice, I get into trouble.A. Every time B. When C. While D. Until
8. _____ John was watching TV, his wife was cooking.A. As B. As soon as C. While D. Till
9. The children ran away from the orchard(果园) ______they saw the guard.A. the moment B. after C. before D. as
10. No sooner had I arrived home _____ it began to rain.A. when B. while C. as D. than
11. Several weeks had gone by _____ I realized the painting was missing.A. as B. before C. since D. when
It __ long before we ___ the result of the experiment.A. will not be; will know B. is; will know C.will not be ; know D. is; know
–What was the party like? --Wonderful. It’s years __ I enjoyed myself so much.A. after B. before C. when D. since
14. The new secretary is supposed to report to the manager as soon as she___A. will arrive B. arrives C. is going to arrive D. is arriving
15. _____ got into the room _____ the telephone rang.A. He hardly had; then B. Hardly had he; when C. He had not; then D. Not had he; when
16. No sooner had he finished his talk _____ he was surrounded by the workers.A. as B. then C. than D. when
17. –Did you remember to give Mary the money you owed her?--Yes, I gave it to her _____ I saw her.A. while B. the moment C. suddenly D. once
18.I thought her nice and honest ___ I met her.A. first time B. for the first time C. the first time D. by the first time
19. He will have learned English for eight years by the time he _____ from the university next year.A. will graduate B. will have graduated C. graduates D. is to graduate
20. The moment the 28th Olympic Games _____ open, the whole world cheered.A. declared B. have been declared C. have declared D. were declared

1.before 2.before 3.B 4.B 5.B 6.D 7.C 8.C 9.A 10.D 11.B 12.D 13.B 14.B 15.B 16.C 17.B 18.C 19.B 20.D

a. before 要用完成时. b意思不通 c时间状语从句. d除非. 也是意思不好. 一直很安静,直到那些车通过城市. 问题补充： d为什么意思不好. 一直很安静,(除非)那些车通过城市——事实上，如果车不通过的话，你怎么知道就不会安静？也许声音并不大。这种说法，很别扭啊~ 逻辑上感觉就不好。

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