The first few years in the 21st century ______ the rapid rise of China as a world economic power.
#101307
A
witness
B
has witnessed
C
will witness
D
have witnessed
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I ________ your last point — could you say it again? 
#104730
A
didn’t quite catch
B
don’t quite catch
C
hadn’t quite catch
D
can’t quite catch
The whole family _______ to Shanghai for holiday next week.
#103016
A
is going
B
are going
C
goes
D
have gone
 His silence suggested that he_______the truth already.
#103909
A
should know
B
know
C
was know
D
had known