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—Sam, come downstairs, please. I need your help.—Sorry，mum. I        on the phone..
#41572
A
am talking
B
talked
C
was talking
D
have talked
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 ––Where’s your Mom, Xiao Hong? ––She ____ to music in her room.
#37025
A
listen
B
listens
C
is listening
D
has listened
Have you ever ________ the Great wall?
#40391
A
been to
B
gone to
C
go to
D
been
- You seem familiar with Mr. John?-Of course, we_______ together for three years in the 1990s.
#39563
A
have worked
B
were working
C
are working
D
worked
— What will you do tomorrow?— We’ll have a picnic if it ______ fine.
#39962
A
is
B
was
C
will be
D
has been
—What          your brother like?     —He likes music.
#41521
A
would
B
is
C
do
D
does