Study hard, _____ you won’t pass the exam. I see,Mum.A. or B. and C. but
Sally is ________ American girl. She plays __________ violin very well.
The new books are for _____________________ .
Jack spends two hours _______________ his homework
—_________________? — It’s November 14.
We are going to have the party _____ 4:00 ________ the afternoon of November 15.