More and more people prefer to walk rather than ride in cars．
_____． Walking is good for health．（ ）
A．So they areB．So are they
C．So they doD．So do they
There's ______ in the city．Why not have a picnic in the countryside？
Great! Daweishan Mountain might be a good choice．（ ）
A．interesting something
B．nothing interesting
C．anything interesting
______ April 22nd，people around the world celebrate Earth Day in different ways．（ ）
A．InB．AtC．On
Hello，John．This is Mike．What are you doing now？
I'm watching a football match．It started at 7：30 p．m．and ______ on for another one hour．（ ）
A．has beenB．wasC．will be
Boys and girls! I hope you can get good grades in this exam．
______， Miss Lu!（ ）
A．Thank youB．You are OKC．Good idea
Do you like Jay Zhou？
Yes． I like singers ______ sing pop songs．（ ）
A．whichB．whenC．who