—Why are the lights in the teachers’ office still on?
—There ________ be some teachers working there.
| A．can | B．must | C．may | D．ought to |
—What are people supposed to do when they meet for the first time in China?
—They are supposed to _______.
| A．shake hands | B．kiss | C．bow | D．embrace |
—This article is too hard to understand.
—Yes, _______ it's very short and there are few new words in it.
| A．because | B．as | C．so | D．Though |
Selfie (自拍) has been named word of the year by Oxford Dictionaries editors because of its most usage.
| A．was named | B．is named |
| C．names | D．has been named |
—Oh, my weight has gone up again.
—I’m not ______ really. You eat too much.
| A．supposed | B．surprised |
| C．pleased | D．Tired |