【题目】Sam and Tom __________their homework then. ( )
A. did B. does C. doing
【答案】A
【解析】
略
上一篇 (1)4米=(_)分米; (2)8厘米=(_)毫米;(3)90毫米=(_)...
下一篇 — Did Dad cook lunch? ( )— _.A. Yes...
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