46. He hesitated about the brake, otherwise the accident ______.
| A．could have been avoided | B．could have avoided |
| C．would have avoid | D．should have been avoided |
Don't forget the appointment with the principal at the registry office, _____you
| A．don't | B．do | C．will | D．shall |
It is _____honor for Mrs. Black to be invited to act as an hostess at the party.
| A．an | B．a | C．/ | D．the |
Nobody in the class except you and me _____ to the principal about the air quality problems.
| A．has complained | B．have complained |
| C．complain | D．complaining |
There is an increase of 16% in the consumption of tobacco_____ the previous year.
| A．over | B．than | C．to | D．then |
They are going to have the serviceman ____ an electric fan in the office tomorrow.
| A．install | B．to install | C．to be installed | D．installed |