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选择题
There ______ a big closet and green curtains.
A. are B. be C. is
选择正确答案
-- ___ there a lot of traffic?
A. Are B. is C. Is
The ducks ______ watching us.
A. are B. is C. do
--What colour ____ the trees?
-- ____ green.
A. are; They're B. is; It's C. are; It's