Lucy () at school on Sundays

问题描述:

Lucy () at school on Sundays
A.usually is
B.is usually
C.are usually
D.Usually are

主语Lucy为第三人称单数形式,时态又是一般现在时态,所以谓语动词用is
usually这样的程度副词放于be之后
希望对您有用,