_________ is known to us all that the earth is smaller than the sun.
#93423
A
It
B
What
C
As
D
which
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________ your composition carefully, some spelling mistakes can be avoided.
#93577
A
Having checked
B
Check
C
If you check
D
To check
You are ______ to be hit by lightning ______be attacked by a shark, so don’t be frightened by sharks.
#93422
A
more likely 30 times; than
B
30 times as likely; than
C
30 times as more likely; as
D
30 times as likely; as
_________that we will _______free computer training during the holidays.
#93657
A
It has been decided…be given
B
It has decided…be given
C
That has been decided…be given
D
It has been decided… give
The poor young man is ready to accept ________ help he can get. 
#95100
A
whichever
B
however
C
whatever
D
whenever
.He said that not until the heavy snow blocked the express ______ how serious the weather was.
#94120
A
did the villagers realize
B
the villages realized
C
the villages did realize
D
didn’t the villagers realize