When ______ the United Nations founded?
A. is
B. are
C. was
D. were
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Every possible means _____ .
A. has tried
B. has been tried
C. was tried
D. were tried
What she says and does _____ nothing to do with me.
A. was
B. were
C. has
D. have
There _____ a dictionary and several books on the desk.
A. are
B. must
C. have been
D. is
Nobody ______ seen the film. It’s a pity.
A. but Tom and Jack have
B. except Tom and Jack have
C. but my friends has
D. but I have