A. If B. When C.. Though D. Where 8．. It seems only seconds____ they came back.
A. when B. after C.. before D. till 9. ---Do you think we can get there on time? ---Yes,___ the truck doesn’t break down.
A. even if B. unless C.. until D.. so long as 10．We won’t give up ___ we should fail ten times.
A. even if B. since C.. whether D. until
11. I have kept that portrait ___ I can see it every day, as it always reminds me of my university days in London.
A. which B. where C. whether D. when 12.---Are you sure that you have met him before? ---____ I am mistaken.
A. If B. Since C. Unless D. More than 13.I don’t think I will need any money but I will bring some___.
A. at last B.. in case C. once again D.in time
14.---I’d like to invite you to my new house next weekend.
---Thank you, but ___ I’ll have time I am not sure at the moment.
A.. when B. as C. in case D. unless 15.---Have some Maotai, please.
---No, thanks. It’s 3 years ___ I drank.
A.before B. since C. after D. when 16. John knocked at the door for nearly five minutes ___ his wife opened. A.when B. before C. until D. while 17. We hadn’t been out for long ___ she felt sick.
A. as B. when C. while D. after 18. His success is ___ by talent as by energy.
A. not so much B. so not much C. much not so D. so much not 19.She had golden hair when she was a child, but ____ she got older and older, her hair went A. while B. when C. after D. as 20. We liked the oil painting better____ we looked at it.
A. as B. while C. the moment D. the more
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