While _________the topic of music in class, all the students show great interest in it.
| A．discussed | B．discuss |
| C．discussing | D．are discussing |
The three of us __________ around Europe for about a month last summer.
| A．travelled | B．have travelled |
| C．had travelled | D．travel |
His first novel __________ good reviews since it came out last month.
| A．receives | B．is receiving |
| C．will receive | D．has received |
Jenny works hard as usual and it has __________. She got the first in the final exam again.
| A．turned out | B．paid back |
| C．paid off | D．turned up |
I was trying to sound __________ even when I was very nervous while I was making the speech.
| A．active | B．fluent |
| C．calm | D．peaceful |
—Who's the man talking to our teacher?
—A professor __________ a visit to our school.
| A．pays | B．is paying |
| C．has paid | D．paying |