Those oranges on the desk.A.are B.is C.has C.am
Did your father tell you _______?
Nowadays, more and more people would rather ____ __ in the country, because there is ______pollution there than in the city.
Dr. Ma is strict ______ local doctors and nurses, especially________their skills.
---When did you go to bed last night?---______________
It rained so_______ that people could _______ go out yesterday morning.