Who were you speaking to?
刚才你在和谁讲话?
Who will go makes no difference.
谁去都一样。
It is still not decided who should be our manager.
谁当我们的经理还没有决定。
The key is who can carry this heavy box.
关键是谁能搬动这么沉的箱子。
The man (who) I saw is called Smith.
我见到的那个人叫史密斯。
People who receive kindness are likely to offer it to others.
得到好意的人很可能把它给予他人。
Richard, who worked for a business company, was eager to work for himself.
理查德在一家商务公司工作,他渴望自己当老板。