I: Grammar and vocabulary: ( 26分)
Section A
21. There is still 30 minutes _____, so we _____ hurry with supper.
A. going, needn’t B. left, don’t need
C. leaving, needn’t to D. to go; needn’t
22. ____cleans the blackboard is to be praised.
A. Anyone B. Those who C. Whomever D. The one who