单项选择题

The students are busy () the examination.

A. preparing for
B. preparing
C. to prepare
D. to prepare for

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单项选择题
The traveler brought back some () of the rocks from the mountains.

A. samples
B. specimens
C. selections
D. examples
单项选择题
The dish()terrible! I don't like it at all.

A. tastes
B. tasted
C. will taste
D. is tasted
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