（全国I卷）26. I like getting up very early in summer. The morning air is so good ______.
A. to be breathed B. to breathe C. breathing D. being breathed
（安徽卷）30._______ in the fields on a March afternoon, he could feel the warmth of spring.
A. To walk. B. Walking C. Walked D. Having walked
（福建卷）22. ______ in the queen for half an hour, the old man suddenly realized be had left the cheque in the car.
A. Waiting B. To wait C. Having Waited D. To have waited
