_____ to too much sunlight, as is generally considered, will add to the potential of catching skin cancer.
| A．Being exposed | B．Exposed | C．Exposing | D．To expose |
I was out of town at the time, so I don’t know exactly how it _______.
| A．was happening | B．happened | C．happens | D．has happened |
It saves tome in the kitchen to have things you use a lot _______ easy reach.
| A．near | B．upon | C．within | D．around |
------shall we have our picnic tomorrow?
-----______it doesn’t rain.
| A．Until | B．While | C．Once | D．If |
Amy joined a painting group but didn’t seem to _______, so she left.
| A．show | B．go up | C．fit in | D．come over |
------Poor Steve! I could hardly recognize him just now! 
------_______________, He has changed so much.
| A．Never mind | B．No problem | C．Not at all | D．Me neither |