19．—My cat’s really fat.
—You ______ have given her so much food.
| A．wouldn’t | B．couldn’t | C．mustn’t | D．shouldn’t |
The news ____ was spreading all over the city proved to be incorrect.
| A．what | B．which | C．it | D．whether |
_________ all the pupils in the school felt the same effect of small classes remains to be researched.
| A．That | B．Whether | C．What | D．If |
. I didn’t quite follow you. What was it ____ you just said about the subject?
| A．what | B．which | C．that | D．how |
Why don’t you bring ____ to his attention that you really don’t have time to do it for him?
| A．this | B．what | C．that | D．it |
Great changes have taken place in that village. It is no longer ____ it was 10 years ago, ____ it was so poor.
| A．what; when | B．that; which |
| C．what; which | D．which; that |