More and more people around the world are learning Chinese now.=more and more people _ _ theworld are learning Chinese now.They must go to bed before 10:00 p.m.=_ is _ _ _ _ _ go to bed before 10:00 p.m.It's not a good idea to keep a big dog in a sma

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MoreandmorepeoplearoundtheworldarelearningChinesenow.=moreandmorepeople__theworldarelearningChinesen

More and more people around the world are learning Chinese now.=more and more people _ _ theworld are learning Chinese now.They must go to bed before 10:00 p.m.=_ is _ _ _ _ _ go to bed before 10:00 p.m.It's not a good idea to keep a big dog in a sma
More and more people around the world are learning Chinese now.=more and more people _ _ the
world are learning Chinese now.
They must go to bed before 10:00 p.m.=_ is _ _ _ _ _ go to bed before 10:00 p.m.
It's not a good idea to keep a big dog in a small flat.=We _ keep a big dog in a small flat.
She must finish her work before playing with her cat.(否定句)she _ _ _ finish her work before _ _ with her cat.

More and more people around the world are learning Chinese now.=more and more people _ _ theworld are learning Chinese now.They must go to bed before 10:00 p.m.=_ is _ _ _ _ _ go to bed before 10:00 p.m.It's not a good idea to keep a big dog in a sma
1..all over
2.It is necessary for them to
3.shouldn't
4.doesn't need to she plays