—Does your mother often surf the Internet ?—Yes, __________

—Does your mother often surf the Internet ?—Yes, ___________ she doesn’t buy any thing on line.

#56430

but

and

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She is very heavy, ______ she never stops eating.

#57619

but

when

Keep off the drugs（毒品）,         you and your family will be in great danger?

#58326

and

but

          you practice your English every day, you won’t make any progress on it.

#57889

Although

Unless

Since

-Why are you so busy?-____________I have ____________ work to do.

#55299

Because; too many

So; too much

So; too many

Because; too much

–Why were you late for school this morning?–I got up very early this morning, ________ I didn’t catch the first bus.

#55176

and

but