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He tried his best to solve the problem, ______ difficult it was.
#33187
A
however
B
no matter
C
whatever
D
although
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they are twins, they don’t look the same at all.
#31846
A
Because
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D
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Stand over there, ___ you’ll be able to see the oil painting better.
#32639
A
and
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till
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Use your head, ________ you’ll work out the problem.
#32463
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or
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 —You see, I’m poor in maths, you are not good at English, and... — That’s ____ we should help each other.
#33721
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when
B
where
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how
D
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_By success I don’t mean_______usually thought of when that word is used.
#80066
A
what is
B
what has
C
that is
D
that has