用所给单词的正确形式填空.1.Could you please help ___(clean)the park?2.It's bad ___(copy)2.It's bad ___(copy)others' homework.3.The old man often sells books ___(make)money.4.___(sell)books is a way ___(make)money.
问题描述：
用所给单词的正确形式填空.1.Could you please help ___(clean)the park?2.It's bad ___(copy)
2.It's bad ___(copy)others' homework.
3.The old man often sells books ___(make)money.
4.___(sell)books is a way ___(make)money.
答
答案：
1.to clean
2.to copy
3.to make
4.To sell,to make
以上都是练习动词不定式的
有不明白的请继续追问,