—How’s your tour around the North Lake? Is it beautiful?—It _______ be, but it is now heavily polluted.
More than five doctors and rescuers have got to Yushu County up to now.
-- I’m very tired, helping with the clothes. ----Why not take a rest ,then? ----- ________.
Oh, it’s so cold in here. Somebody ____ the window, please.
-----Excuse me. Could you direct me to the nearest post office? ______ straight on and you’ll see it on your right.
–----- Have you been to the Great Wall? ------ Perhaps not in my memory. _______, it might have been during my early childhood.