___________you try to do something beyond what you have already mastered, you will never grow.

___________you try to do something beyond what you have already mastered, you will never grow.

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Since

When

Though

Unless

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Excuse me for breaking in, ______ I have some news for you.

#34439

and

but

yet

Stand over there, ___ you’ll be able to see the oil painting better.

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and

till

but

—I'll call you ______ I arrive in Shenzhen． —Thanks, and good luck．

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while

until

once

Jack wasn’t saying anything, but the teacher smiled at him _______he had done something very clever.

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as if

now that

while

though

Now there is just one point   I wish you to make clear.

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where

that

when

what