【题目】How many desks ___________ in your classroom? ( )
A. there are B. they are C. are there
【答案】C
【解析】
略
上一篇 5□3÷7,商的最高位是(_)位,要使商的末尾有0,□里应填(_)...
下一篇 _Amy at home yesterday. ( )A.Is B...
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