Mr. Smith works with a mobile phone company, but he _____________ for this international meeting, since he is on holiday.
| A．works | B．is working | C．has worked | D．had worked |
The teacher told the student __________attention to his spelling and grammar.
| A．pay | B．will pay |
| C．to pay | D．paying |
The old man was upset because his favorite vase __________ by his grandson.
| A．broke | B．had broken |
| C．is broken | D．was broken |
If I can’t finish _____________my homework now, I’ll go on with it after supper.
| A．do | B．doing | C．did | D．to do |
__________there are many advantages of television, some people are not satisfied with it.
| A．until | B．Since |
| C．Although | D．When |
The old lady _________along the road when the car hit her suddenly.
| A．was walking | B．walked |
| C．had walked | D．has walked |