-What was Susan doing at 8 last night?-She __________ her homework at 8 last night.A. is doing B. was doing C. didD is did
- Jack, could you help me when the plane will take off on the Internet? -I’m sorry , ,my computer doesn’t work..
Ithis book yesterday, You can take it away.
Therestudents in our school at that time.
The workers in HuaShan Mountains have torubbish to keep the mountains clean.
Martha is a girl. She always smiles and says hello to others.