IN TRA BONG DISTRICT, QUANG NGAI PROVINCE, THE CLASS BEGAN SEVEN YEARS AGO WITH A MIX OF CHILDREN,SOME DUMB, DEAF OR SUFFERING A LISP AND OTHERS MENTALLY RETARDED

2/ In Tra Bong District, Quang Ngai province, the class began seven years ago with a mix of children,

some dumb, deaf or suffering a lisp and others mentally retarded.

A. went B. performed C. started D. appeared