--- The reading room _____ from 9 a.m. to 5 p.m.--- It’s 4 p.m. Now, but the door ___________.
My father _______ at eight o’clock yesterday evening.
His mother is ill. He has to ________ her at home.
It’s a lovely day, _________?
She hasn’t visited Thailand _______ England yet.
–How long has Mr. Liu taught English? --- _______ 1998.