—Every year________tourists come to the island．
—________of them is about one million．
A．a number of；A number of
B．the number of；A number of
C．a number of；The number of
C．the number of；The number of
（2014江苏扬州）—when will A Bite of China Ⅱ begin tonight？
—It________for ten minutes．
A．will begin
B．has begun
C．will be on
D．has been on
—Have you ever________to a zoo？
—Yes，but only once．I visited Beijing Zoo last year．
A．gone
B．been
C．visited
D．seen
—The radio is too noisy and there is nothing interesting on it．Why don’t you________？
—All right．I’ll do that．
A．turn it on
B．turn it off
C．turn it back
D．turn it up
My friend，Darren，is coming to visit us．I’m looking forward________him．
A．meet
B．meeting
C．to meet
D．to meeting
—When did you become a volunteer？
—I________in this group since 2008．
A．joined
B．took part
C．have joined
D．have been
