---When did you return to China?---________________

---When did you return to China?---_________________.

#56057

Until next week

Not until next week

a few days ago

for a few weeks

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Bob is young, _______ he knows a lot.

#58536

because

but

unless

Leo is my good friend. He likes tennis         ping-pong.

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but

and

________we will have an exam(测试) next week,_____ we have to go over our lessons.

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Because, /

Because ,so

/ , /

So, so

________ Jeremy was hurt in the match, he didn’t give up and finished in ninth place.

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When

Although

Because

—Hurry up! The bus is coming. —Wait a minute. Don’t cross the street _______ the traffic lights are green.

#58477

until

after

while

since