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[单选题]
"There must have been a storm there." "（)."
A.There couldn't be
B.There needn't be
C.I think there was
D.There mustn't have been
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.There couldn't be
B.There needn't be
C.I think there was
D.There mustn't have been
如果结果不匹配，请 联系老师 获取答案
更多“"There must have been a storm …”相关的问题
To squeeze the most out of each shining hour we have shortened the opera, quickened the pace of the movie and put culture in pocket-sized packages. We make the busy bee look like a lazy creature, the ant like a sluggard. We live sixty-mile-minute and the great efficiency smiles.
We wish we could return to that pleasant day when we considered time a friend instead of an enemy; when we did things willingly and because we wanted to, rather than because our timetable called for it, But that of course would not be efficiency; and we Americans must be efficient.
The phrase that best expresses the main idea of this passage is ______. ()
A．the modern pace
B．our interest in shortened operas
C．how to make the best use of leisure time
D．planning our time scientifically
They______informed, or they would get here on time.
A．mustn't have been
B．shouldn't have been
C．can't have been
D．needn't have been
From the last paragraph we learn that
A．the seas we will depend on for future food have been more or less contaminated.
B．the marine resources are directly bound up with our future life.
C．the exploitation drives are essential for us to improve the quality of llfe on the earth.
D．the ecological balance in the seas has nothing to do with that on the land.
There is an experiment for this, or at least an observation, make long ago by Karl Von Frisch and more recently confirmed by James Gould at Princeton, Biologists who wish to study such things as bee navigation, language, and behavior. in general have to train their bees to fly from the hive to one or another special place. To do this, they begin by placing a source of sugar very close to the hive so that the bees (considered by their trainers to be very dumb beasts) can learn what the game is about. Then, at regular intervals, the dish or whatever is moved progressively father and farther from the hive in increments (增长) of about 25 percent at each move. Eventually, the target is being moved 100 feet or more at a jump, very far from the hive. Sooner or later, while this process is going on, the biologists shifting the dish of sugar will find the bees are out there waiting for them, precisely where the next position had been planned. This is an uncomfortable observation to make.
With what subject is the passage mainly concerned？
A．The bee, a social animal.
B．Navigational techniques of bees.
C．Testing the awareness of bees.
D．The bee hive, nature's candy shop.
A sentence must not only be acceptable, but also have appropriate structure.()
参考答案：错误
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
Look, what you have done! You ______ must have been move careful.
A．must
B．might
C．should
D．would
It must have rained last night, ______ the ground is wet. ()
A．because
B．as
C．since
D．for
We ______ last night, but we went to the cinema instead.
A. must have studied
B. might study
C. should have studied
D. would study
A. must be
B. should be
C. must have been
D. would have been
