他们在餐厅里吃午餐 they are having dinner ( ) ( ) ( ) ( ）
问题描述：
他们在餐厅里吃午餐 they are having dinner ( ) ( ) ( ) ( ）
答
they are having dinner in the dining room.(注意冠词必须为the,不能为a,在这里是特指吃饭的场所是“餐厅”)