46（）

单项选择题45（）

A．offer
B．dress
C．store
D．good

单项选择题What can be concluded according to the National Highway Traffic Safety Administration（）

A．They are going to investigate into “Bugs” problem.
B．Some of the “Bugs” are not usable any more.
C．It is defenseless when it is hit by a heavy carl.
D．The “Bugs” is good for use.