Someone knocked at the door he was doing his homework.

Someone knocked at the door       he was doing his homework.

#55271

after

when

until

as soon as

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I am really shy.        I don’t know anyone there?

#56091

What if

How

What

Why

Lily knows some Chinese, ______ she can read the words on the bottle.

#58401

but

for

—Would you like to go hiking with us this Sunday? —Sure, _______ I am busy.

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until

when

unless

since

 Study hard, _        _ you will pass the exam.

#55217

but

and

 The shirt is very good , _______ I don’t like it .

#57624

and

but

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