Lose one hour in the morning ______ you will be looking for it the rest of the day.
| A．but |
| B．and |
| C．or |
| D．so |
I made a promise to myself______ this year, my first year in high school, would be different.
| A．whether | B．what | C．that | D．how |
No matter how bright a talker you are, there are times when it's bettersilent.
| A．remain | B．be remaining |
| C．having remained | D．to remain |
The development of industry has been_______ gradual process throughout _______ human existence, from stone tools to modern technology.
| A．不填, the | B．the; a | C．a; 不填 | D．a; a |
— Is there anything else to discuss?
—_____________. I guess.
| A．Not at all | B．No, that's all | C．Yes, I'm sure | D．Yea, of course |
—Coach, can I continue with the training?
—Sorry, you can’t you haven’t recovered from the knee injury.
| A．until | B．before | C．as | D．unless |