20. _________raining hard for 3 hours without stopping.21.
Be _____we can' t expect an absolute freedom of expression.
Sometimes people just believe what they see, ______the reality may be different.
- The speaker is a tall man with glasses. - Then it_____ be Mr. Smith, who is short and thin.
I have to see the doctor this afternoon because I ____ a lot lately.
- Why do you choose to work in a kindergarten? - Well, you know, dancing is my _____. So it is my best choice.