We have done a lot to make our city cleaner, but it’s still not enough.– So we should do ________ to improve it.

分辨下面加点词的意思，选出判断正确的一项（ ）①田园将芜胡不归 ②奚惆怅而独悲 ③既窈窕以寻壑 ④既自以心为形役

Is that your pencil case ____the lost and found case

How I was _______when I heard the _______ news!

Modern furniture would be ____ in a Victorian house．