21.---I’m worried about the coming exam.
---______. Morgan! Everything will get better.
A. Have fun B. Just forget it C. All right D. Calm down
22. Jack is too ____to change his mind easily. He always believes what he thinks right.
A. nervous B. reliable C. stubborn D. brave
23. Our teacher told us not to let ourselves be ______ into buying things we don’t want.
A. advised B. commanded C. persuaded D. put
