–Do you know____ he will stay in America?  --Ten weeks.
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A
how often
B
how long
C
how soon
D
how much
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I finished my ______________ exams yesterday.
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A
end of year
B
end of-year
C
end-of-year
D
end-of-year’s
---__________?---In a factory. 
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A
Where does he work
B
Where is he from
C
What does he do
D
What does he like
—    are you going to the airport?
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A
What
B
How
C
When
D
Why
All of us were___ at the___ news.
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A
frustrating, frustrating
B
frustrating frustrated
C
frustrated, frustrating
D
frustrated, frustrated