The World Health Organization has given some advice on        to protect us from being infected(感染) with H7N9.
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A
how
B
what
C
where
D
when
推荐题目
Don’t eat that meat.It smells________.
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A
dirty
B
delicious
C
bad
D
badly
Of the two T-shirts,I’d choose the ___one to save some money for a book.
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A
cheapest
B
cheaper
C
more expensive
D
most expensive
— In our English study reading is more important than speaking, I think.— I don’t agree. Speaking is _______ reading. 
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A
as important as
B
so important as
C
the most important
D
not as important as
__________ chocolate isn’t good for you.
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A
Too much
B
Too many
C
Much too
D
Many too
---Have you returned the book to the library _______?---Yes, I have _______ retuned it.
#44839
A
yet, yet
B
already, already
C
already, yet
D
yet, already