单项选择题

A．The heart pumps blood in two directions.
B．The blood is circulated round the body in one direction only by the pumping action of the heart.
C．The blood moved with a backward and forward motion.
D．The heart pumps blood in all directions.
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单项选择题
Man should take the philosophy of thrift by conserving natural resources and not destroying them.
A．Y
B．N
C．NG
单项选择题
A．She needs a new raincoat or umbrella.B．It will probably rain tomorrow.C．She doesn’’t know what the weather will be like tomorrow.D．She doesn’’t know where the man put his raincoat or umbrella.
A．She needs a new raincoat or umbrella.
B．It will probably rain tomorrow.
C．She doesn’’t know what the weather will be like tomorrow.
D．She doesn’’t know where the man put his raincoat or umbrella.
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