_______he grew older , he began to go deaf.
| A． As | B．When | C．While | D．With |
______her dark sunglasses, the star wasn’t recognized by crazy fans.
| A．Hiding behind | B．To hide behind |
| C．Hide behind | D．Hidden behind |
You ______get this book free if you can tell me the name of the writer.
| A．shall | B．should | C．must | D．need |
Mary won’t keep slim ______she takes exercise every day.
| A．unless | B．if | C．when | D．or |
____I will go abroad for further study or not is my top concern these days.
| A．If | B．Whether | C．What | D．Where |
---Would you mind my sitting here?
--- ______. It’s for my girl friend.
| A．Not at all. | B．Never mind. |
| C．Better not. | D．Of course not. |