Why are you still here It’s so late.—Because I my work. Don’t worry. It’s almost done.

We only moved a new flat last week .Once we’ve _______, we must go to visit you in person.

na’s space technology has achieved____ breakthrough in this field, it really is ____ amazingwonder.

Oneadvantage of fishing is ______ it can give you a lot of pleasure.

刘勰在《文心雕龙》里诠释“用典”，说是“据事以类义，援古以证今”。《艺苑雌黄》云：“文人用故事，有直用其事者，有反其意而用之者”。以下古诗文的用典手法，与其他三项不同的是