---We can’t get good grades ______ we study harder. ---I agree. That’s why I study so hard.A. because B. if C. unless
My cousin is a secretary. She ______in that company for over six years.
--Mark, would you like _________tennis with me after school? --Yes, I’d love to.
My parents and I _______ abroad last year.
My watch works very well. There is _______wrong with it.
--______you swim? -- No, I can’t.