For everyone’s safety, we ___________ a1ways remember the law against driving after drinking.
| A．could | B．should | C．might | D．would |
My grandmother is over 90, but she is still in good health and stay ___________.
| A．safe | B．warm | C．awake | D．active |
一Oh，there’s someone knocking at the door．
一must be that naughty boy.
| A．H e | B．This | C．It | D．That |
Weuse mobile phones when the plane takes off．
| A．may not | B．should n’t |
| C．need n’t | D．must n’t |
一What do you think of our performance on the charity show?
一Wonderful !I don’t think I can see aone·
A．bad B．worse C．good D·better
一Why were n’t you at the meeting?
一Ifor a long distance call from my sister in America·
| A．waited | B．was waiting |
| C．have waited | D．had waited |