题目内容

You can’t be ________ careful in making the decision as it was such a critical case.

A very
B quite
C too
D so

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Children are ________ to have some accidents as they grow up.

A obvious
B indispensable
C bound
D doubtless

We have done things we ought not to have done and ________ undone things we ought to have done.

A leaving
B will leave
C left
D leave

The ratio of the work done by the machine ________ the work done on it is called the efficiency of the machine.

A against
B with
C to
D for

________ the flood, the ship would have reached its destination on time.

A In case of
B In spite of
C Because of
D But for

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