Mr. Smith will in the movement.
A. play a leading part
B. take parts
C. play leading part
D. take a part
网友回答
(答案→)A. play a leading part
B. take parts
C. play leading part
D. take a part
解析：：考查固定词组。Play a part in…在…中起作用。扮演…角色；句意：斯密斯先生在这次运动中扮演了领导作用。故A正确。