______, most of the spelling mistakes can be avoided.
| A．Checking your composition carefully | B．Check your composition carefully |
| C．If you check your composition carefully | D．Your composition is carefully checked |
—You've got your flat furnished, haven't you?
—Yes. Isome used furniture at the Sunday Market and it was a real bargain.
| A．will buy | B．have bought | C．had bought | D．bought |
The zoo keepers is worried because the number of visitors __smaller
and smaller.
| A．become | B．became | C．is becoming | D．have become |
With films like Avatar proving__________ in cinemas, many technology experts believe 3D is now set to take over the home market,
| A．difficult | B．easy | C．common | D．popular |
Look out! Keep away from the house, _____ the roof is under repair．
| A．whose | B．which | C．of which | D．where |
YaoMing, as we know,_____ like to play basketball.
| A．does | B．appears | C．feels | D．sounds |