1. The boy listened with amazement until the instructor insisted he ___it . A. A.tried B. B.try C. C.must try D. Dwould try ...
37: The United States did not entered the First World War until 1917. A: 错误 B: 正确 ...
14. 按控制条件的位置循环结构分为do[循环体]until[条件]和while[条件]do[循环体]两种结构。 A. 错误 B. 正确 ...
9. It wasn’t until the party was almost over that Carlos ______ that he was moving to another state. A. attempted B. mentioned C. examined ...
1: The house needs ___ ,but they plan to wait until next spring. A: paint B: to paint C: painting D: be painted ...
25. I don’t really work here. I___until the new secretary arrives. A. just help out B. have just helped out C. am just helping out D. will just help out ...
31. __________ wasn’t believed until the fifteenth century that the earth revolves around the sun. A. It B. What C. That D. Such ...
46.??I'll go and see you ( ) I'm in England. A. while B. until C. before ...
15.??Not until recently did I _____the college life. A. use to B. get used to C. used to D. used in ...
2. Not until I began to work _________ how much time I had wasted. A. have I realized B. did I realize C. I have realized D. I realized ...