--- Do you know _____ by the police last night? --- Yes, because he spread a rumor(谣言) on Wechat.
| A．how was a teenager caught |
| B．how a teenager was caught |
| C．why was a teenager caught |
| D．why a teenager was caught |
Yesterday something ________ happened. We didn't know what it was.
| A．unhappy | B．uneasy | C．unable | D．unusual |
This coat ________ be Tom's. He doesn't like the color at all.
| A．must | B．might | C．could | D．can't |
—Is Mr. Smith over there?
—It ________ be him. He has gone to Beijing on business.
| A．can't | B．must | C．might | D．can |
-was the car invented?
--It was invented in 1983.
| A．When | B．Why | C．How | D．Who |
I enjoy playing computer games, but I can't spend too much time ________ that.
| A．in | B．on | C．for | D．to |