—Shall I lock the lab now before I go home?
—______.I’ll check it myself later.
| A．Go ahead | B．No problem |
| C．No hurry | D．Don’t bother |
Don't leave for there until__________ to do so.
| A．you'll be told | B．told | C．telling | D．you are told |
Tom’s teacher kept on telling him to practise speaking English, but _______ didn’t work.
| A．he | B．which | C．all | D．it |
These plants are watered___________
| A．each other day | B．every other day | C．each of two days | D．every of two days |
Tom admitted ______ in the examination and he was not admitted _____ the school at last.
| A．to cheat; to | B．cheating; to | C．to cheat; as | D．cheating; as |
We tried to _______ his doubts and let him tell the truth.
| A．replace | B．review | C．remove | D．rebuild |