who,who are they?他們是誰?可以回答:they are my relatives。他們是我的親戚。
或者回答:they are students。他們是學生。
還可以回答:they are tourists。他們是遊客。
或者回答:they are engineers。他們是工程師。
they are nurses。他們是護士。
they are her classmates。
可以加Who或者What。他們是誰或者它們是什麼