It must have rained in the night for when l woke up the next morning I saw the gr
B)昨晚可能下了雨,因为我早晨醒来时发现草地是湿的。
C)昨晚可能下雨了,因为我被叫醒时发现草地是湿的。
D)昨晚肯定下雨了,因为我早晨醒来时发现草地是湿的。
B)昨晚可能下了雨,因为我早晨醒来时发现草地是湿的。
C)昨晚可能下雨了,因为我被叫醒时发现草地是湿的。
D)昨晚肯定下雨了,因为我早晨醒来时发现草地是湿的。
A.it must rain
B.it must be raining
C.it must have rained
D.it must have been rained
A.it must be raining
B.it must rain
C.it must have rained
D.it must have been rained
Since the road is wet this morning,last night ().
A.it must be raining
B.it must rain
C.it must have rained
D.it must have been rained
A.rain
B.will rain
C.rained
D.rains
The ground is very wet. It _____ have rained last night.
A.might
B.can
C.must
D.may
The streets are all wet. It ______ during the night.
A.must be raining
B.must have rained
C.had rained
D.must rain
You ____ buy some reference books when you go to college.
A. must
B. will have to
C. must to
D. have to
A.It must have the UNIQUE attribute.
B.It cannot be created explicitly by the user.
C.It must have the UNIQUE and CLUSTER attributes.
D.It must have the UNIQUE WHERE NOT NULL attribute.
John's score on the test is the highest in his class, he ______ very hard.
A. must have studied
B. should have studied
C. must study
D. should study