— What’s your plan for this weekend? — We will go for a picnic by the river ______

— What’s your plan for this weekend? — We will go for a picnic by the river _______ it rains.

#56007

unless

but

because

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------You are leaving for Beijing Please send me a postcard _________ you are there.------No problem.

#55621

while

although

because

After hard work, he felt __________ tired to walk.

#55803

too

Very

Our team tried our best, ________ we failed the match at last.

#55973

but

and

while

It’s almost eight years             we saw each other last time.

#57855

since

before

after

when

Someone knocked at the door       he was doing his homework.

#55271

after

when

until

as soon as

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