( ) Drivers ________ on the ________ side of the road in America.
-What does it mean?-It ________ we shouldn't park our cars here.A. mean B. means C. meaning
What________they mean?A. does B. do C. did
-Can I go in? -________A. No,I don't. B. Yes,I am. C. Yes,you can.
There are ________ public signs in the park.A. a lot of B. lot of C. a lots of
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