It _____ last week that the haze(雾霾)in Beijing caused many problems.
----________ there any food for the drivers and passengers? ----Yes, __________.
In Beijing he stayed at a very nice hotel, but he can’t remember ______ name of the hotel.
—Would you mind my opening the window?—_______ . It’s cold today.
My cousin has been learning English _____she was six years old.
—What did she______?—She said she ______to Beijing for a trip.