在工伤事故分类中,按照事故类别可以划分为( )类别。
A. l0个
B. 15个
C. 20个
D. 30个
Her son goes to ______ school by ______ bus every day.
A. a… the
B. /… a
C. a… the
D. /… /
I have ______ violin. I often play ______ violin.
A. a… the
B. a… a
C. the …the
D. /… /
Does she like ______ music? She likes ______ music of the film.
A. the… /
B. /… the
C. /… /
D. a … a