—Excuse me, could you tell me ________ a book about music? —Sure. They are on the second floor.A. where can I buy B. where I can buy C. when I can buy D when I can buy
He is ill in hospital, __ he can’t come here. A. so B. if C. because
I left my umbrella in my room. Could you wait here_____ I go back to get it?
---Is this your coat, sir? ---No. Mine _____over there near the window.
---Susan, why are you still here? They are all ready to start. ---I’m sorry, but I _____when to meet.
---Is Peter here yet? ---Not yet, but he ______be here soon. He usually is on time.