对老年人经济上供养、生活上照料和精神上慰藉的义务，属于老年人享有的()。

________evidence that language acquiring ability must be stimulated.

My train arrive in New York at eight o'clock tonight. The plane I would like to take from there ______by then.

Tina _____ have known the truth, or she would have told us.

监察委员会主任每届任期同本级人民代表大会每届任期相同。