Please _________ because this is a reading room.  
#59430
A
quiet
B
to be quiet
C
to quiet
D
be quiet
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   hardworking students they are!
#66236
A
What
B
What a
C
What an
D
How
 _______ your mind and you will find the way.
#66254
A
Using
B
Use
C
If you use
D
To use
Everything is full of yellow dust because of the sandstorm(沙尘暴).     !
#66115
A
What terrible a weather
B
What terrible weather
C
How terrible a weather
D
What a terrible weather
_______it is to jump out of an airplane at 10,000 feet!
#66146
A
What an exciting experience
B
How exciting experience
C
How an exciting experience
D
What exciting experience