---How long is it _____ we last met?
--- About five years. You haven’t changed much.
| A．before | B．since | C．when | D．that |
It suddenly _____ to him that he hadn’t asked for her name when the girl disappeared in the distance.
| A．occurred | B．referred | C．realized | D．struck |
—Have you got any idea on Rachel’s question?
— Sorry. I _____ to her when she asked.
| A．didn’t listen | B．hadn’t listened |
| C．hasn’t listened | D．wasn’t listening |
John looked at the little girl in_____ surprise. He couldn’t understand why a girl at _____ age of four should have said that.
| A．/; / | B．the; / | C．a; an | D．/; the |
People in Chongqing feel the air here is better than _____ in Beijing.
| A．it | B．the other | C．that | D．the one |
Another hurricane hit the US, _____ about 9 deaths and 80 injuries.
| A．causes | B．caused | C．causing | D．to cause |