She had to leave school_______ her family couldn’t afford her education.
| A．although | B．unless |
| C．because | D．so |
I like my music teacher ______ I have great respect.
| A．whom | B．for whom | C．to who | D．who |
Those who want to say anything more _________ your hands and then_______ to speak.
| A．rise; raise | B．raise; rise | C．raise; raise | D．rise; rise |
Rainforests ____ and burned at such a speed that they will disappear from the earth in the near future.
| A．cut | B．are cut | C．are being cut | D．had been cut |
—Peter, hurry up! You ______ on the phone.
—Oh, I ______. Thank you.
| A．are being wanted; will come | B．are wanted; am coming |
| C．want, come | D．will be wanted; should come |
I can’t leave the office now. A lot of work ________ to be done.
| A．is remained | B．left | C．remains | D．have |