Sometimes, Jim feels stressed, but he doesn’t know _______ about it. —He can get help from his teachers.

People in ancient times ______ series of important events so that we now have what is called history.

The book is well worth ______. Everyone ______ buy one and read it.

f the creatures in Rowling’s world are not real,and much of____happens is strange．

There are many skirts in this shop. I can’t choose .