读句子，左右栏的问句与答语对应搭配：2×5
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
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