單項選擇題

In autumn, the（）fall down from the trees.

A.leaf
B.leafs
C.leaves

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單項選擇題

I usually go to the office（）train.

A.with
B.by
C.on

單項選擇題

A:（）are your parents? B: They are in China.

A.What
B.How old
C.Where

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