His ability has never been in doubt----the question is __________

His ability has never been in doubt----the question is ___________ or not he is prepared to work hard.

#31580

that

where

whether

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My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”

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until

before

while

after

He must be from America, ____ can be judged from his accent.

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that

which

where

You can get the best result ______you carry out the experiment under the desired conditions.

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what if

even if

only if

as if

 He had to sell his luxury car, ________ his company was in debt.

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before

until

while

for

I’d like to arrive 20 minutes early      I can have time for a cup of tea.

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as soon as

as a result

in case

so that

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