21£®We work together to achieve our common purpose£º          world that is safer cleaner and healthier than         one we found£®

A£®the£»the                            B£®a£»²»Ìî              C£®a£»the            D£®the£»²»Ìî

22£®After running for a mile yesterday£¬I was almost                   £¬not feeling bad£¬though£®

A£®out of shape                              B£®out of breath

      C£®out of control                              D£®out of order