[单项选择]A) every C) two B) each D) all


A. every
B. each
C. two
D. all

[单项选择]A) every C) two B) each D) all


A. every
B. each
C. two
D. all

[单项选择]Every boy and every girl knows that each day and each hour brings their duty.（）
A. and
B. knows
C. brings
D. their

[单项选择]

Each day every person in the United States throws away more than five pounds of garbage(垃圾). There is more garbage now than ever before and most of it is made up of the packages and cans in which we put our food. The traditional way of getting rid of solid wastes is quickly becoming inadequate. Many cities are experimenting with newer ways of handling their growing piles of garbage.
One of these new ways is "recycling"(回收使用). Through recycling usable materials are taken out of garbage and made into something else. These usable parts of garbage are put through the cycle of going from a raw material to a finished product again.
In some cities a machine called Hydrapulper is being used to help recycle garbage. A Hydrapulper is like a huge mixing machine. The garbage is dropped onto a conveyor belt (传送带) that feeds the machine. At the same time, water is pumped into the Hydrapulper. With a mixing action, the Hydrapulper throws out the heavy metal objects tha
A. It throws away glass and sand from garbage.
B. It collects heavy metal objects for selling.
C. It separates garbage into useful and useless things.
D. It pumps water into garbage and mixes it.

[单项选择]They two were nice to each other.

[单项选择]The findings of the two studies contradict each other, though both groups of scientists have used the same method.
A. agree with
B. confirm
C. complement
D. disagree with

[单项选择]Every day Mother spends two hours ______ housework.


A. to do
B. doing
C. does

[单项选择]The loss of one or two northern fight whales every year is considered an unaeeeptable loss because they ______.
A. are the only Whales that can sing songs
B. are the only whales capable of masking the clamour of ocean noise
C. provide clues to scientists to study sea currents and waves
D. are on the very verge of distinction