--What color is the ruler?
-- ________
A．It's a ruler．
B．It's white．
C. It's a white．
Jim _________ in Zhuzhou 
since he finished his college.
A. works B. is working C. has worked
He knows _________ about computer than me.
A. much B. more C. most
Mary didn’t go to John’s birthday party because she ________.
A. wasn’t invited B. didn’t invite C. isn’t invited
Tony wants _______a job as a language teacher in China.
A. to find B. finding C. find
—Do you know ________ she went to the movie last night?
—On foot.
A. when B. why C. how