单项选择题

As to the greenhouse effect, the author_______.

A．shares the same view with the scientists
B．is uncertain of its occurrence
C．rejects it as being ungrounded
D．thinks that it will destroy the world soon

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热门试题

单项选择题

It is customary to leave a house_______.

A．through the kitchen window
B．through a bedroom
C．by the door
D．down a drain-pipe

单项选择题

A．makeB．possessC．getD．assume

A．make
B．possess
C．get
D．assume