题目内容

A beautiful rainbow ________ the sky.

A. stood
B. through
C. across
D. spanned

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He felt ________ about his son’s safety.

A. anxious
B. serious
C. careless
D. careful

The boy is living in the ________ of the world.

A. night
B. darkness
C. dark
D. dampness

SI really ________ your helping me.

A. understand
B. appreciate
C. thank
D. want

The police arrested the ________.

A. mineral
B. crime
C. criminal
D. military

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