题目内容
The book that was written by Jia sixie gives advice on ________ to grow green vegelables and frait trees.
[
]A
. what B. whichC
. how D. why
答案:C
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题目内容
The book that was written by Jia sixie gives advice on ________ to grow green vegelables and frait trees.
[
]A
. what B. whichC
. how D. why