同学们在食堂吃饭. 英文怎么说

The students eat in the dining hall(或者the dining room)

进行时是The students are eating in the dining hall(或者the dining room)

My schoolmates (或classmates) are having meals in the dining hall.

My classmates are eating in the canteen.

the students are having meals in the refectory

The students are eating in the eatery. 如果要说吃午饭或晚饭 可以用having lunch/dinner.