正确答案: B

on

题目：Our school has a speech contest ________May 4th．

解析：1．B  【解析】在具体的某一天用on．

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举一反三的答案和解析：

[单选题]I (11) Lisa’s good friend． We (12) running stars． We (13) three meals to-gether every day． (14) breakfast， I like tw0 (15)and a glass of milk， and she (16) two hamburgers and two glasses of milk． For (17) ， she (18)a bowl of rice and some chicken ， and I (19) two bowls of rice， a plate of salad and some fish． For dinner， we have the same (同样的) (20) ．( )11．

am

解析：11．B【解析】以l作主语，系动词用“am”。

[单选题]下列有关灭火措施处理不当的是（ ）

大量油类物质泄漏着火，用水扑灭 B．木材着火，用水扑灭

[单选题]8． Betty can play ________ guitar， but she can't play ________basketball．

the；/

解析：8.D【解析】演奏乐器，前边必须加the，表示进行某项球类运动，前边一定不加the．