He had to retire(退休) early _____

He had to retire(退休) early ______ poor health.

#58273

as a result

because

because of

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

#56088

Although

Unless

Since

Coke isn’t healthy _____ milk is healthy.

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and

but

Hurry up, _________we’ll be late for school.

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and

but

Mr. Green and Mr. King have taught English at Beijing Sunshine Secondary School ________ they came to China two years ago.

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since

for

until

She doesn’t send emails_______ watch movies on computer.

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and

but

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