问题补充：
She looks forward every spring to the flower-lined garden．
A. walking in
B. walk in
C. visit
D. paying a visit
答案：
(答案→)A. walking in
B. walk in
C. visit
D. paying a visit
解析：考查动名词做宾语，look forward to （doing） sth“盼望做某事”，选A是：她每年春天都盼望在花园里散步。BC项没用动名词，D项少介词to。
