—As a teacher, we can’t be _______ patient with our students.
向别人介绍一位新朋友时,你会说:________
There is _______ “f” and _______ “u” in the word “four”.
--- _______ are you eating?--- I’m eating _______ meat.
I don’t like _______ thrillers _______ playing baseball.
This is not _______ book. I think it’s _______ book.