The young firemen were so brave that they the fire and saved the children in that house.
| A．put in | B．put on | C．put out | D．put up |
Many students like reading the book Harry Potter_____by J.K. Rowling.
| A． written | B．was written |
| C．wrote | D．was writing |
It is a good way to keep both teachers and students_______.
| A．to happy | B． happying | C．happy | D． happily |
But none of the artists knew _____to make the King happy.
| A．when to do | B．what to do |
| C．how to do | D．where to do |
Now the traffic in our city is becoming ______.than before.
| A．much heavier | B．more heavier |
| C．much heavily | D．very heavier |
I ______play the piano when I was a young boy .
| A．wasn’t used to | B．wasn’t use to |
| C．didn’t use to | D．didn’t used to |