Tim’s brown hair, dark glasses and the manner of walking alarmed the guards. That’s why he ______ closely.
| A．has watched | B．was watched | C．had watched | D．was watching |
I sent a big bunch of flowers to the nurse as anof thanks for her taking good care of my grandpa in the nursing home.
| A．attitude | B．impression | C．appreciation | D．expression |
Many gases in the atmosphere actually heat energy that escapes from the Earth’s surface back to the earth.
| A．finding; reflecting | B．found; reflected |
| C．found; to reflect | D．found; reflect |
—you play the piano at this time of the day ? I need a good rest for tomorrow’s test.
— Sorry.
| A．Must | B．Shall | C．Can | D．May |
— Have you watched the film “Avatar”?
— Not yet. But I the film is worth watching.
| A．am told | B．was told | C．have told | D．have been told |
— What do you think about that firm’s job offer ?
—I have been considering it, it’s hard for me to make a decision right now.
| A．and | B．but | C．so | D．otherwise |