Anyone in the lab has to the following dos and don’ts.
| A．observe | B．consult |
| C．recognize | D．direct |
Men and women should be treated equally according to the law, but _____there is great room for improvement．
| A．in return | B．in peace | C．in relief | D．in reality |
---Could I have a window seat ?
---All right. Your flight _____ boarding at Gate 18 at 2:15.
| A．have begun | B．began | C． is to begin | D．begins |
The report examines teaching methods _______in the classroom.
| A．employed | B．inspected | C．deserved | D．selected |
You can arrive in Beijing earlier for the meeting ____you don’t mind taking the night train．
| A．supposed | B．unless | C．though | D．until |
We won’t ______for delivery if you pay now.
| A．suffer | B．charge | C．settle | D．host |