【题目】—What grade is he _______? ( )
—Sorry, I don’t know.
A. from B. in C. at D. after
【答案】B
【解析】
“在几年级”介词用in。
【题目】—What grade is he _______? ( )
—Sorry, I don’t know.
A. from B. in C. at D. after
【答案】B
【解析】
“在几年级”介词用in。
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