Either you _your sister _because one of you must stay at home. A. or, goes B. nor, go C. or, go
More students start to play basketball in our school,but few of them can play very __________though they always practise after school.
That hard-working woman began to do housework as soon as she __________home.
__________players will take part in the Youth Olympic Game this year.
Mrs. Bond is a good teacher, he is also an old friend of __________.
Look! A large group of birds are flying __________the mountain!