单选题:According to the latest study,most traffic accidentsbe prev.. 题目分类:情态动词 题目类型:单选题 查看权限:VIP 题目内容: According to the latest study,most traffic accidentsbe prevented if drivers are careful enough.A.mustB.canC.have toD.need 参考答案:
As the experts tell us, we can pass on the flu _____ we real.. As the experts tell us, we can pass on the flu _____ we realize we have it.A. before B. since C. while D. when 分类:情态动词 题型:单选题 查看答案
You may use room as you like ____ you clean it up afterwards.. You may use room as you like ____ you clean it up afterwards.A. so far asB. so long as C. in caseD. even if 分类:情态动词 题型:单选题 查看答案
We were about to climb up to the top of the mountain _____ i.. We were about to climb up to the top of the mountain _____ it began to rain heavily.A. as B. whileC. when D. since 分类:情态动词 题型:单选题 查看答案
Because of the heavy traffic, it was already time for lunch .. Because of the heavy traffic, it was already time for lunch break _____she got to her office.A. since B. that C. whenD. until 分类:情态动词 题型:单选题 查看答案
_____ our national football team lost the game to a weak tea.. _____ our national football team lost the game to a weak team as Syria by 2 to 3, I held no doubt about the new coach's ability.A. Until B. By the time C. UnlessD. After 分类:情态动词 题型:单选题 查看答案