.A number of cars in front of the parkA. is parkedB. was parkedC. are parkedD. has parked

问题补充：

.A number of cars in front of the park

A. is parked

B. was parked

C. are parked

D. has parked

答案：

A. is parked

B. was parked

(答案→)C. are parked

D. has parked

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