The first decade in the 21st century _______ the rapid rise of China as a world economic power.
#102847
A
witness
B
has witnessed
C
will witness
D
have witnessed
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---Mom, can we move into our new house this weekend? ---No, it _________.
#102404
A
is painted
B
is painting
C
was painted
D
is being painted
The telephone _______, but by the time I got indoors, it stopped.
#104961
A
had rung
B
was ringing
C
rings
D
has rung