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单项选择题

There are a lot of spelling mistakes in your composition. You should have been more

A．carefully
B．careless
C．careful

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热门试题

单项选择题—How soon will you be able to finish your homework

A．After two hours
B．In two hours
C．Two hours later

单项选择题My litter sister is only five,__________ she can swim well.

A．but
B．so
C．because