Learning to write is learning to think. You don’t know things clearly ______

Learning to write is learning to think. You don’t know things clearly _______ you can write them down.

#56362

unless

since

whether

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They didn’t go to bed ________ they finished their homework.

#55880

when

because

until

I don’t like science _______ it’s difficult.

#55838

but

because

and

Teresa is ______ nervous ______ he can’t talk in front of the class.

#56856

such; that

too; to

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so; to

__ we are young, we can still do something to help protect the environment.

#58217

Since

Because

Though

---_____do you visit your uncle?---once a week .

#56274

How long

How many

How much

How often

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