单项选择题

A．He is doing a survey.
B．He is introducing himself.
C．He is talking with a friend.
D．He is selling a product.
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单项选择题
A．Pets manage to make their owners more healthy.B．Pets spread many kinds of disease to men.C．Pet owners enjoy better health because of exercises.D．Pets can sometimes cause high blood pressure in man.
A．Pets manage to make their owners more healthy.
B．Pets spread many kinds of disease to men.
C．Pet owners enjoy better health because of exercises.
D．Pets can sometimes cause high blood pressure in man.
单项选择题
A．Your eye sight.B．Your driving ability.C．Your car’s mechanical condition.D．Your knowledge of traffic regulations.
A．Your eye sight.
B．Your driving ability.
C．Your car’s mechanical condition.
D．Your knowledge of traffic regulations.
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