–Have you ever _______ to Singapore?–No, never.
#40686
A
are
B
were
C
was
D
been
推荐题目
When summer __, some children will go to the seaside for fun.
#41892
A
comes
B
came
C
will come
D
would come
Some students in Shanghai     e-bags for several months.  
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A
have
B
have had
C
had
D
will have
A young man                at 8 p.m. last Sunday.
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A
is murdered
B
murdered
C
was murdered
D
was murdering