单项选择题

A．It enables Earth to stay warm enough for life to survive.
B．It makes your car much hotter inside than outside.
C．It can improve human living standard.
D．It can absorb the sun’s rays.
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单项选择题
A．She is one of the best babysitters in the areaB．She purchases groceries for evening meals.C．She provides special educational entertainment.D．She does some housework while the parents are out.
A．She is one of the best babysitters in the area
B．She purchases groceries for evening meals.
C．She provides special educational entertainment.
D．She does some housework while the parents are out.
单项选择题
A．SherryB．SandyC．SusanD．Sharon
A．Sherry
B．Sandy
C．Susan
D．Sharon
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