She looks forward every spring to the flower-lined garden. A. visitB. paying a visitC. wa

问题补充：

She looks forward every spring to the flower-lined garden.

A. visit

B. paying a visit

C. walk in

D. walking in

答案：

A. visit

B. paying a visit

C. walk in

(答案→)D. walking in

解析：look forward to 中 to 是介词，后接动词要用动名词。若选 B，应在其后加 to 才行。