Your performance in the exam isn’t that satisfactory. , you failed.
I made a promise to myself _____ this year, my first year in high school, would be different.
No matter how bright a talker you are, there are times when it’s better _____ silent.
The development of industry has been ____ gradual process throughout ______human existence, from stone tools to modern technology.
---Is there anything else to discuss? ---________, I guess.
It is a general rule that children’s games and books seek to teach and ______ at the same time.