选用that, who, whom 或 which填空。
【小题1】This is the first gift_____   I got from my parents.
【小题2】The town ___________ we visited a few years ago is much larger than before.
【小题3】April 1st is a day ____________ is called April Fools’ Day.
【小题4】The girl ___________ we talk about just now is an exchange student from America.