题目内容
I don't know ________ make an apple pie but I can learn ________ one.
[ ]
A. to/how to
B. how to/to make
C. to/to
D. how to/of making
答案:B
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题目内容
I don't know ________ make an apple pie but I can learn ________ one.
[ ]
A. to/how to
B. how to/to make
C. to/to
D. how to/of making