I have art________ ten o'clock________ Friday morning.A. in; at B. at; on C. to; on
You could visit ____ children in the hospital and _____ them_____.
Your room is a real mess. Would you please _________?
----What bad weather! It’s raining again -----Yeah. We have to ______our school trip.
----Could you please sweep the floor? ---_____________. I have to do my homework first.
---Daming didn’t finish his homework yesterday. ----_________________.