關於文法選擇
A World Heritage Site and one of the New Seven Wonders
of the World, Machu Picchu is Peru's most visited attraction,
welcoming hundreds of thousands of people a year. _______
tourism and the development of nearby towns continue to
cause harm to the site, which is also home to several endangered
species.
_______的選項有: (A) Increasing (B) Increased (C) To increase
(D) Being increased
答案是B，請問為何不能選A呢？
謝謝!