( ) These green trees. A. is B. are C. was
( ) A: ________ are you going this weekend? B: I'm going to the Science Museum. A. When B. What C. Where
( )I want to buy ________ shoes. A. a B. a pair of C. a pairs of
( )In China, drivers drive on the ______ side of the road. A. right B. left C. middle
( ) The traffic lights are the ________ in every country. A. same B. different C. difference
( ) ---Which floor? ---The ________ floor, Room 5A. A. five B. fifth C. fiveth