30．The new curriculum advocates allowing students more time to participate in_______is referred to as community service.

30．The new curriculum advocates allowing students more time to participate in_______is referred to as community service.

       A．that   B．which       C．where       D．What

30．The new curriculum advocates allowing students more time to participate in_______is referred to as community service.

More and more companies are allowing their office workers to wear             clothes to work in the United States.

       A．formal                 B．serious                C．proper                 D．casual

However, I am afraid ________ I keep allowing him to do what he wants, he may fail at school , or worse．

1. A.
   that
2. B.
   which
3. C.
   what
4. D.
   that if