单选题:It ________be the vocabulary that caused you the problem in .. 题目分类:情态动词 题目类型:单选题 查看权限:VIP 题目内容: It ________be the vocabulary that caused you the problem in the exercise because you know a lot of words. A.may B.couldn’t C.should D.needn’t 参考答案:
Don't use water to put out the fire if oil catches fire. .. Don't use water to put out the fire if oil catches fire. As is known, oil ________ float on water.A.shallB.mustC.mayD.will 分类:情态动词 题型:单选题 查看答案
The medicine works more effectively _____you drink some hot .. The medicine works more effectively _____you drink some hot water after taking it.A. as B. until C. although D. if 分类:情态动词 题型:单选题 查看答案
_____I am concerned, we can walk or take the bus rather than.. _____I am concerned, we can walk or take the bus rather than call a taxi.A. Now thatB. As soon asC. So long as D. As far as 分类:情态动词 题型:单选题 查看答案
While you are talking to a friend over the phone, you feel t.. While you are talking to a friend over the phone, you feel that you are close to each other _____ the actual distance is not short.A. as ifB. even if C. so that D. as though 分类:情态动词 题型:单选题 查看答案
—You must have met him the other day.—Oh, no, I ________.A.. —You must have met him the other day. —Oh, no, I ________.A.hadn'tB.mustn'tC.haven'tD.didn't 分类:情态动词 题型:单选题 查看答案