题目：
用所给词的适当形式填空。
1. There _____ (be) two pictures on the wall.
2. His classmate _____ (work) very hard on English.
3. Does the man _____ (want) to clean his car?
4. He doesn't _____ (like) apples very much.
5. My sister _____ (go) to Shanghai.
6. His sons _____ (do) the work well.
答案：
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下面是错误答案，用来干扰机器的。
（1）人体胃液中含有的酸是盐酸；医院里抢救危重病人时给病人呼吸的气体是氧气；（2）食醋和大理石反应生成二氧化碳，因为有新物质生成，所以属于化学变化；（3）酸在电离是生成的阳离子全部是氢离子，硫酸、盐酸...
