—What do you often do ________ classes to relax？
—Listen to music or walk around the school．
A．over
B．through
C．between
I hear that Zhengzhou Subway Line No.1 ____________ in 2012. Is it true?
| A．is completed | B．will be completed |
| C．was completed | D．has been completed |
—Your house looks so beautiful! When did you buy it?
—I _________ since half a year ago.
| A．have bought | B．bought |
| C．have had | D．had bought |
When I fail and want to give up, my teacher always encourages me ___________ in myself and have confidence in myself.
| A．believe | B．believes |
| C．believing | D．to believe |
It’s very bright in the room. You’d better _________ the lights.
| A．get off | B．put off |
| C．turn off | D．take off |
—Another cup of coffee?
—No, thanks. I ________ be off. My friend is waiting for me at the school gate.
| A．can | B．may | C．must | D．might |