— Mr. Wang, I got zero on Answering Sheet One. Could you help me correct it?— I’m sorry, but it ______ be marked by the machine. Mark your test number with a pencil 2B next time.
Everyone has a responsibility to save _____ water, if future generations are to enjoy a similar standard of living to _____ we enjoy now.
---________, but the noise is really disturbing. I can’t sleep. --- I’m sorry. I didn’t know you would mind.
_______ progress it is, you can’t stop moving forward.
All the employees except the manager _______ to work online at home.
The boss said to the secretary “If you work well, you ______ have a rise.”