The views in winter may be wonderful, but it is dangerous to climb the mountains ________a cold and snowy morning.
A. in B. on C. at D. for
--- How many students are there in each group?
--- Usually each group _______ six students in our class.
A. is made from B. is made up of
C. is made in D. is made of
He used to _____ in a village, but now he has been used to _____ in the big city.
A. live; living B. live; live
C. living; living D. living; live
— did your uncle leave his hometown? —He for nearly twenty years.
A. When; has left B. When; has been away
C. How long; has left D. How long; has been away
--Where is your father?
--He _______ to Australia on business.
A. has been B. has gone C. went D. will go
Haikou, _______ capital of Hainan Province, is _______ pretty city.
A. a; a B. the; the
C. the; a D. a; the