(2009宁夏银川模拟) In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets. 
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A
that some scientists say
B
in which some scientists say
C
some scientists say that
D
some scientists say
推荐题目
In a shop ___ customers.
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A
it is important pleased
B
it is important to please
C
there is important to please
D
there is important pleasing
 The bookstore has sold _______children’s books as they did last year.
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A
twice as much
B
twice as many
C
as twice many
D
as twice much
I often visit my parents, who live in the countryside  whenever ____.
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A
I am convenient
B
it will be convenient to me
C
I will be convenient
D
it is convenient to me