________ you have to do the job, you should try your best to do it well even though it may be very difficult for you.
| A．Since | B．While |
| C．Unless | D．Though |
—Excuse me, I want to have my car repaired, but I can't find a garage.
—I know where ________ is.Come on, I'll show you.
| A．it | B．the one | C．that | D．one |
Several of the passengers were hurt and one was taken to hospital.Luckily ________ was killed.
| A．no one | B．not all |
| C．none | D．no other |
—Shall I attend my friend's comingofage ceremony, Mum?
—No, unless you see to ________ that you will be home before 10：00 P．M.
| A．one | B．this | C．it | D．her |
Before selecting the curtain for your newly decorated house, it's important to know what colors look great ________ the wallpaper.
| A．on | B．with | C．in | D．against |
—What are you two whispering about over there?
—Oh, ________.Just small talk.
| A．no | B．nobody | C．none | D．nothing |