You should keep the milk in the refrigerator …………… it ...

★ Adverbial Clauses

You should keep the milk in the refrigerator …………… it doesn’t go bad.

A. since

B. because

C. so that

D. after

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They will have suffered from coldness and hunger for 6 hours ______ them on the mountain.

A. by the time we find

B. when we found

C. as soon as we had found

D. after we had found