来自郭晓丹的问题
【theteacheroftenmakesthestudents[].A;laughB;tolaughC;laughedD;laughing】
theteacheroftenmakesthestudents[].
A;laugh
B;tolaugh
C;laughed
D;laughing


【theteacheroftenmakesthestudents[].A;laughB;tolaughC;laughedD;laughing】
theteacheroftenmakesthestudents[].
A;laugh
B;tolaugh
C;laughed
D;laughing
答案是A.laugh.因为makesomebodydosomething.