________ we deal with our problems, we can easily become unhappy.

 ________ we deal with our problems, we can easily become unhappy.

#55210

Until

Unless

Though

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when

that

because　　　　

until

My sister is short,      I am tall.

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and

but

only

does

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Since

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The harder you__________, the better progress you ___________.

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will work

work; have made

work; will make

will work; make