___to the sun for too long can hurt your skin
| A．Being exposed |
| B．To expose |
| C．Exposing |
| D．Exposed |
He had been so absorbed____ watching the car passing by that he didn’t notice his friends ____.
| A．to; coming | B．in; to come | C．on; coming | D．in; coming |
All these changes will lead to____ better Yangzhou High School，____ that can surprise and inspire all the alumni．
| A．a; the one | B．a; one | C．the; one | D．the; one |
--- Shall I take a message for you?
--- _____.
| A．You are welcome | B．With pleasure |
| C．Thanks for your message | D．It’s nice of you |
John’s success has nothing to do with good luck. It is years of hard work _____ has made him what he is today.
| A．why | B．when | C．which | D．that |
We were about to go out for a walk ________ it began to rain.
| A．while | B．before | C．as | D．when |