A new study finds that sitting can shorten a person’s life almost as much as smoking can, which _______ just how damaging inactivity can be.
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A
estimates
B
highlights
C
dominates
D
ensures
推荐题目
Tony is a lawyer now, but he      in a delivery company for six years.
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A
has served
B
had served
C
was serving
D
served
 Nobody likes him because he ____ lies to others.
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A
is always telling
B
always tells
C
does always tell
D
has always told
Great changes ______ in my school in the past ten years.
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A
took place
B
were taken place
C
have taken place
D
have been taken place