Helen ____ go on the trip with us, but she isn’t quite sure yet.
| A．shall | B．must | C．may | D．can |
______, I am not satisfied with your work.
| A．Telling the truth | B．To tell the truth |
| C．Being told the true | D．To have told the truth |
He was seen ______ a letter in his bed room.
| A．write | B．to write | C．written | D．wrote |
They want the job ______ by the end of the week.
| A．to do | B．done | C．did | D．to be doing |
I found my home town completely ______.
| A．changed | B．changing | C．to be changed | D．to change |
Tom failed ______ the experiment yesterday.
| A．doing | B．did | C．to do | D．do |