being fun and good exercise，swimming is a very useful skill．
| A．Apart from | B．As good as | C．In addition | D．As well |
Ladies and gentlemen,welcome to my program.____ me this evening is Dr.Gray.
| A．To join | B．Join | C．Joined | D．Joining |
While income worry is ____ rather common problem of the aged,loneliness is another problem that ____aged parents may face.
| A．a;/ | B．the;/ | C．a;the | D．the;the |
Many people can not learn any lessons from the mistakes____they get hurt somehow.
| A．whether | B．unless | C．if | D．when |
Everyone has periods in their lives_______everything seems very hard.
| A．when | B．where | C．which | D．that |
— I can’t imagine Phelps smoking marijuana (大麻).
—____.
| A．Nor am I | B．So do I |
| C．Me,too | D．Me,neither |