With more and more tourists invading, lots of places of interest require .
A. being repaired
B. repaired
C. to be repairing
D. repairing
网友回答
A. being repaired
B. repaired
C. to be repairing
(答案→)D. repairing
解析：require+doing ；require+to be done.句意：随着越来越多的旅游者的入侵，许多名胜需要修理。故选D。