二、单项填空（共20小题；每小题0．5分，满分10分）
从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题纸上将该选项标号涂黑。
21．—I've decided to go back to school for some training in programming．
— ．When would you like to start?
A． Good for you B． Up to you C． You can have it D．I got you
22．It is beyond ．belief that his aunt Lucy, 80-year-old lady, can sing and dance so wonderfully
A． a; the B．不填;an C．不填,the D． the; an
23．The new policy that all TV stations must rearrange their programs to 商业广告）during TV dramas will take into effect soon．all commercials(
A． share B． instruct C． delete D． attach
24． Deep in the mountains Freon discovered dozens of green birds, some of ．produce cock-like songs
A．it B． them C． those D． which
