The boy didn’t go to schoolhis illness (疾病). [ ]

Go and ask Mr Green for help.—But I don’t know ______.

You shouldn’t take photos in the museum, it’s _______ the rules. [ ]

Can you tell me where to spend your winter holiday?—I’m not sure. We go to Yangzhou.

Can you give me a hand?—Sorry, I can’t help you do this because it is ________my ability.