I                       to Shanghai three times.
#37406
A
have gone
B
have been
C
went
D
was
推荐题目
Look! Jack and his monkey _________ flying disk together in the garden. 
#42280
A
is playing
B
was playing
C
are playing
D
were playing
―What    your English teacher doing now?  ―He _____ a newspaper.
#42429
A
is, reading
B
is, is looking at
C
does, watching
D
is… is reading
 --_______your brother like _______ fishing? --Yes, of course.
#41550
A
Is, go
B
Does, going
C
Is, going
D
Does, go
These new clothes _____ to the children in the mountain villages tomorrow.
#39866
A
are sent
B
were sent
C
has been sent
D
will be sent
---when _______the telephone________,do you know?---Yes.In 1876.
#39777
A
was,invented
B
are;invented
C
did;invent
D
had,invented