It is true that light travels in a straight line and never -- it hits something that reflects itA.turns until B.bends unless C.breaks when D.changes until

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It is true that light travels in a straight line and never -- it hits something that reflects itA.turns until B.bends unless C.breaks when D.changes until
It is true that light travels in a straight line and never -- it hits something that reflects it
A.turns until B.bends unless C.breaks when D.changes until

It is true that light travels in a straight line and never -- it hits something that reflects itA.turns until B.bends unless C.breaks when D.changes until
从单词意思去考虑
turn 转弯,改变方向(很多意思,根据题意取这个)
bend 弯曲,弯腰
break 破坏
change 改变
所以B和C可以直接排除,A和D比起来,A的意思更明确,就是(光的)方向改变,更符合题意

A

B

B啦我们做过这个题了
bend还是U3新学的单词,光线不可拐弯,bend拐弯