The American Psychological Association's Stress in America Survey【S】 found that while Gen Z【S】 is the least likely【V】 to report having excellent mental health请问最后这个不定式to report 和这个having 短语在这个句子中充当何种成分?
Lily ,how to keep ourselves safe from the novel coronavirus? All ____ we can do for the movement is to wear masks, wash hands frequently and exercise regularly. 选项有what that how,答案是that,为什么不能选what?