___________ is known to everybody, the noon travels around the earth once every month.
#71749
A
It
B
As
C
That
D
What
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Electronic devices such as iPods and headphones can do great harm to our hearing if _______ improperly.
#67875
A
being used
B
used
C
to be used
D
having been used
____ is none of your business.
#70207
A
What action I shall take
B
What action shall I take
C
It is what action I shall take
D
I shall take what action
____ is a fact that English is being accepted as an international language.
#74534
A
There
B
This
C
That
D
It
The number of farmers with Internet access has dramatically increased, _____the way farmers do business.
#68363
A
having changed
B
to change
C
changing
D
changed