(2013·新课标Ⅰ，32)There's no way of knowing why one man makes an important discovery________another man，also intelligent，fails.
#11496
A
since
B
if
C
as
D
while
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— The scarf is nice, but the price is a little bit high.— _______, but if you want good quality, you have to pay more.
#11262
A
No wonder
B
No doubt
C
No offence
D
No problem
The interesting story is completely made up by myself.If there is any similarity to yours，it is all by________．
#11956
A
purpose
B
coincidence
C
design
D
reputation
Thanks for your directions to the house; we wouldn’t have found it ___.
#10585
A
nowhere
B
however
C
otherwise
D
instead
The world’s population has grown by ______ it was in 1800.
#14205
A
more than six times that
B
six times more than that
C
more than six times what
D
six times as many as
They are the __ who __ Wuhan University and now are playing an important part in our factory.
#12799
A
graduate; graduated
B
graduates; graduated
C
graduates; graduated from
D
graduate; graduated from