With more than 200 million views worldwide．the latest video Gangnam Style very popular since it____________.
#101173
A
has become；was uploaded
B
became；uploaded
C
became，was uploaded
D
has become．is uploaded
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The Russian rocket designer has died. For many years, he ______ as an important assistant to the father of Soviet space program.
#101576
A
serves
B
was serving
C
served
D
has served
. It is the first time that Chinese astronaut Wang Yue________as one of the volunteers for the Mars-500 test project .
#103604
A
has been selected
B
had been selected
C
has selected
D
selected
“What are you busy for?”—This is a question we very often get _____ nowadays.
#100536
A
asking
B
being asked
C
asked
D
to ask
The doctors have recommended that she _______ on, but she has not yet made up her mind.
#103553
A
will be operated
B
is operated
C
be operated
D
was operated