The modern history of Italy dates from 1860, ______ the country became united. 
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A
when
B
if
C
since
D
until
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 There ______ a sports meeting in our school next week.
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A
will be
B
will have
C
are going to be
D
is going to have
It’s 8 o’clock. The students _________ an English class.
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A
have
B
having
C
is having
D
are having
Not only the parents but also their child __________ the Bird’s Nest next week.
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A
have visited
B
is going to visit
C
are going to visit
D
have been to