单项选择题

Don''t_________. I can help you with the typing.

A．matter
B．care
C．worry
D．concern
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单项选择题
We won''t be able to leave the office until the rain_________.
A．will stop
B．stops
C．slopped
D．is stopping
单项选择题
Next month my family will buy a _________ car.
A．luxury
B．luxurious
C．luxuriant
D．luxuriance
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