All witnesses _____ to the traffic accident are required to make their statements.
Many Americans eat ________ as they actually need every day.
I like getting up very early in summer. The morning air is so good _________.
After that, he knew he could _________ any emergency by doing what he could to the best of his ability.
Hiking is ____ great fun .You will get close to ____ nature and take exercise at the same time.
--- I’ll be away for a while. Would you mind looking after my baby?--- Not at all. .