_________ by the teacher, Tom got into the classroom from the back door quietly.
| A．To avoid being seen | B．Avoiding seen | C．Avoid being seen | D．Avoided seeing |
Now my hometown is not at all _________ a traveler who visited it ten years ago can expect.
| A．that | B．what | C．which | D．where |
—Michael was late for Mr. Smith’s oral class this morning.
— _________? As far as I know, he never came late to class.
| A．How come | B．So what | C．Why not | D．What for |
___ Mary is sleepy, she insists on finishing her homework rather than ___ to sleep.
| A．While, going | B．Though, goes | C．As, going | D．Despite, go |
It is ______ the customers’ needs that has made chain stores so popular in big cities in China.
| A．meeting | B．met | C．to have met | D．being met |
Out of the crowded bus , who was dressed in a black suit and waved to a woman.
| A．a tall man in his thirties stepped | B．stepped a tall man in his thirties |
| C．did a tall man in his thirties step | D．did a tall man step in his thirties |