It will take a long time for the effective use of natural resources _________.
#90397
A
to be made
B
to make
C
being made
D
making
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_______to sunlight for too much time will do harm to one’s skin.
#91843
A
Being exposed
B
Having exposed
C
Exposed
D
After being exposed
The judges gave no hint of what they thought, so I left the room really ________.
#91100
A
to be worried
B
to worry
C
having worried
D
worried
He felt______as soon as he realized that he had asked a foolish question.
#97264
A
bored
B
displeased
C
embarrassed
D
disappointed