It sounds like something is wrong with the car's engine. ____, we'd better take it to the garage
immediately.      

— Have you got any particular plans for the coming holiday?   
— Yes. ___  , I'm going to visit some homes for the old  in the city.    

I hear Mr. Smith has passed the driving test.____ , let go and congratulate him.    

His suggestion made me angry, but         .

句型转换。
1.  If it is possible,you can tum to him for help.
   ___________ __________,you can tum to him for help.
2. If they were here now,they could help us.
  _________ ____________ _____________ now,they could help us.
3. Because he was ill,he didn't attend the meeting.
  ________ __________,he didn't attend the meeting.
4. That is the naughty boy. We talked about him last week.
    That is the naughty boy _______ __________ __________ last week.
5. The exhibition is more interesting than it was expected.
    The exhibition is more interesting __________ ____________ .

单句改错。
1. Cet up early tomorrow. If don't,you'll miss the first bus.
   __________________________________________________________
2. I asked him to see the film,but he didn't want.
   __________________________________________________________
3. -Are you a secretary?
   -No,but I used to.
   __________________________________________________________
4. Work hard though young,or you'll regret.
   __________________________________________________________
5. You'd better make some changes where is possible when you are reading my paper.
   __________________________________________________________

Some of you may have finished Unit one. ______,you can go on to Unit two.  

We all know that, _____, the situation will get worse.

Greatly moved by what he did, ____.

If the weather is fine, we'll go. If _____, _____.