问题补充:
With more and more tourists invading, lots of places of interest require .
A. being repaired
B. repaired
C. to be repairing
D. repairing
答案:
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。