-- _______ will the fog and haze(雾霾) last? ---I have no ideA. There is no sign of an enD. A. How long B. How soon C. How far D. How often
That pair of trousers ________ nice. Can I try ________ on?
--May I have ________ new books? ---Sorry, there aren’t ________.
I’m not good at playing ________ piano, but I can play ________ volleyball very well.
My aunt has ________ 11-year-old son. She loves ________ very much.