— Can I make an appointment with Dr. Smith this afternoon?
— Sorry, I’m afraid he is not ______ because he has a patient to operate on.
| A．convenient | B．available |
| C．accessible | D．valid |
Taught in a more professional way, youthe swimming skill much better．
| A．might master | B．would have mastered |
| C．can have mastered | D．could master |
Following the decline in house prices in many small and medium-sized cities, there are now signshome prices in majors cities may also be set for a slide．
| A．which | B．that | C．how | D．what |
— Can I lie about seeing a text message because I was too busy or lazy to respond to it ?
—Receiving a text message does not necessarily mean you have to respond． Why waste a perfectly good liethe truth will serve?
| A．unless | B．until | C．when | D．while |
—Look! Someone the laptop．
—Well, it wasn't me． I didn't do it．
| A．has repaired | B．is repairing |
| C．had repaired | D．was repairing |
People tend to love agricultural productswithout the use of fertilizers, pesticides or chemical additives．
| A．growing | B．grown |
| C．being grown | D．having been grown |