Li Jun will have a math test tomorrow. As he isn’t good at math, he is ______.

Why do you ____ very happy this afternoon?—Because we are going to spend the evening at Lily’s house.

What are you doing?-I’m cutting the wood _________.[ ]

When shall we go to Yunnan?—Let’s ______ it ______ Monday. [ ]

He’s late, __is often the case.