Mr. Barret doesn’t think that all bad language should be allowed. In his opinion, there are ______ that should be kept up.
| A．degrees | B．levels | C．limits | D．standards |
Where were you at supper time? I ____ for you to join me.
| A．waited | B．had waited | C．have been waiting | D．was waiting |
––– I promise my daughter ____ get a nice present on her birthday.
––– I think it will be a big surprise to her.
| A．must | B．shall | C．might | D．need |
––– Could I use your 
phone for a moment?
––– ______. Help yourself.
| A．Take your time | B．Forget it |
| C．By all means | D．Never mind |
What we want is an environmentally friendly car, especially ____ is good on gas.
| A．one | B．one which | C．which |
D．one that |
So far we have done a lot to build a low—carbon economy, but it is ____ideal. We have to work still harder.
| A．far from | B．next to | C．out of | D．due to |