This problem is ______ difficult _________

This problem is ______ difficult __________.

#57835

so; that few of us can do

so; that few of us can do it

too; for anyone of us to do

too; for anyone of us to do it

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 Mary sings English songs well and ______.

#55513

Jane does too

either does Joes

so Janes does

so does Jane

Linda has been drawing ______.

#57560

since 10 years

for 10 years ago

since 2002

in 2002

You will fall behind others_______ you work hard.

#56590

unless

though

since

　　　　 it rained heavily this morning, nobody in our class missed the lesson.

#56424

Even though

Until

Ever since

Because

—Excuse me. Do you have a table for two? —I’m sorry, _____ there aren’t any seats now. Would you mind waiting a while?

#55619

but

and

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