题目内容
【题目】Sam on the beach while his parents in the sea last summer. ( )
A. is sunbathing, are swimmingB. was sunbathing, were swimming
C. is bathing, are swimmingD. bathed, swam
【答案】B
【解析】
略
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题目内容
【题目】Sam on the beach while his parents in the sea last summer. ( )
A. is sunbathing, are swimmingB. was sunbathing, were swimming
C. is bathing, are swimmingD. bathed, swam
【答案】B
【解析】
略