Question

______ in the Moluyuan on a March afternoon, he could feel the warmth of spring.

1. A.
   To walk
2. B.
   Walking
3. C.
   Walked
4. D.
   Having walked

Answer 1

B
考查分词用法。Walk与he构成主动关系，又与位于动词同时发生所以用doing形式。句意：在三月的一天下午走在Moluyuan上，他能感觉春天的温暖。