. ---I usually go there by train. ---Why not _______ by boat for a change.
| A．to try going | B．trying to go | C．to try and go | D．try going |
_____ how to express the idea in English, he turned to the dictionary.
| A．Does not know | B．Not knowing | C．Knowing not | D．Not to know |
You'd better not have the light _____ all day long.
| A．burning | B．burned | C．to burn | D．being burnt |
I had Helen's brother _____ the windows, but Helen had them _____ instead.
| A．to clean； cleaned | B．cleaned； cleaned | C．cleaning； cleaned | D．clean； cleaned |
Dick made it _____ to all his friends.
| A．to know | B．known | C．know | D．knowing |
"Can't you read?" Mary said _____ to the notice.
| A．angrily pointing | B．and point angrily | C．angrily pointed | D．and angrily pointing |