—Do you know about the accident which happened in the center of the city?—Yes. But it was some time we realized the truth.

 —Do you know about the accident which happened in the center of the city?—Yes. But it was some time           we realized the truth.

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before

when

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_____ you make a plan for study, you have to follow it.

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Even

Once

Unless

Until

The small victories in the fight against poverty and hunger have helped many people who are in trouble 　　　　 allowing them to maintain dignity.

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before

after

for

while

This place is an ideal site for a restaurant _______ it is just in the center of the downtown.

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even if

so that　　

in that 　

in case

I don’t really like the author,_______ I have to admit his books are very exciting.

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although

unless

until

once

It will be a long time       we reach the little town.

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that

until

since

before