NOWADAYS/ CHILDREN/ KEPT/ IN/ DAY-CARE CENTRE/ WHILE/ THEIR/ MOTHE...

83. Nowadays/ children/ kept/ in/ day-care centre/ while/ their/ mothers/ are/ working/.

A. Nowadays, children kept in a day-care centre while their mother are working.

B. Nowadays, children are kept in a day-care centre while their mother are working.

C. Nowadays, children are kept in a day-care centre while their mother working.

D. Nowadays, children were kept in a day-care centre while their mother are working.