. Students live and study _______boarding school. They only go home at weekends.

A. to                           B. at                          C. against                   D. in

mn giúp e lm câu này lun nhá 

They are ________because they do judo every day.

A. healthful                B. healthfulness       C. healthily                D. healthy

Ai lm giúp e bài này lun vs ạ ^^

That is the _______where we do all our experiments.

A. laboratory             B. laboratorian        C. labor                      D. laborious

Ai giúp e vs e cảm ơn ạ