( ) I’m fine and how ______ you. A.are B.too C.to
In the USA, people on bikes must ____ a helmet.A. on B. put on C. wear
There are always three lights: red, yellow and ______.A. green B. blue C. orange
How do you get to the USA ________ China?A. for B. to C. from
How can I ______ the zoo?A. gets to B. to get to C. get to
We go to Beijing ______ train.A. in B. at C. by