Cars make our life easier, _________ they bring environment problems.

Cars make our life easier, _________ they bring environment problems.

#56370

but

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______ he is very busy, Li Ming always helps others.

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Although

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Tom was walking along the riverside when he heard someone calling him from behind. He turned around_______ found nothing.

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but

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—Do you like singing      dancing?—I like singing.

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Although,but

/ ,/

But,although

Although,/