( )2. When you cross the street,you must look to ________. A.right B.the front and back C.left D.the right first,then left
( )3.Traffic is the most dangerous in the morning and evening because ______. A.people are doing some shopping B.people are waiting for a bus C.people go to or come from work D.some people go on ghe wrong way
( )4. It’s very interesting to sit ___________. A.on a bus
B.on a two-floor bus
C.on the second floor of two-floor buses D.on the first of two-floor buses
( )5. In China,people drive ___________.
A.on the left B.quickly C.on the right D.in the middle
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