We are confident that the environment __________ by our further efforts to reduce pollution.
| A．had been improved |
| B．will be improved |
| C．is improved |
| D．was improved |
You may just give me a call or drop in, will do.
| A．Either | B．All | C．Each | D．Neither |
Great efforts to increase grain production if food shortages are to be avoided.
| A．could be made | B．must be made |
| C．might be made | D．would be made |
I will never forget my teacher’s advice: “As long as you can affect life of your child in an active way, you’ve been success.”
| A．/ ; the | B．a; / | C．a; the | D．the; a |
--- Don’t forget to take the message to my teacher.
--- .
| A．Yes, I will. | B．No, I won’t. |
| C．I don’t think so | D．Sorry, I don’t |
No decision about the holding of the conference until all the related factors have been taken into consideration．
| A．will be made | B．is made | C．has been made | D．is being made |