Shirley stood in the empty room, ______ so lonely for the first time.
#88874
A
felt
B
to feel
C
feeling
D
having felt
推荐题目
_______ as “a class of one ”, independent learning enabled you to study at your own pace.
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A
Describing
B
Described
C
To be described
D
Being described
Time ____ never comes again. So we’d better make full use of our time. 
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A
losing
B
lost
C
being lost
D
having lost
Which materials can be thrown into the sea _______on the nature of them?
#92428
A
depended
B
depending
C
to depend
D
depends