—It’s a long time since we met last. Haven’t you graduated from college yet?—_____. I ______ English for four years in Nanjing University.
Tom is good at maths, so I think he is the student ____can help you to work out this problem.
He lives in a big house ____ windows face south.
Family fights are the things ____I feel upset.
The____ teacher has much ____in teaching English.
The boss left Jack ____the company when he was in hospital.