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The reason why the car accident happened is_______ the driver was drunk.
A.for
B.because
C.that
D.since
A.for
B.because
C.that
D.since
A、why
B、the reason that
C、the reason for why
D、why that
The reason why they changed their mind()to us yet.
A)has not explained
B)has not been explained
C)did not explain
D)was not explained
A.that
B.why
C.for
A、The reason why it’s possible to travel backwards and forwards in space.
B、The reason why it’s possible to travel backwards and forwards in time.
C、Why is time and space exactly the same thing.
D、Why doesn’t light travel in a straight line.
A.A. why……if
B.B. why……that
C.C. that……why
D.D. why……what
The main reason why people fail to act when they stay together is that______.
A) they are afraid of emergencies
B) they are reluctant to get themselves involved
C) others will act if they themselves hesitate
D) they do not feel any direct responsibility for those who need help
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