Tom and I __________ now.A.am doing my homeworkB. are doing our homeworksC.are doing our homework
你在问别人问题之前,你可以有礼貌地说: A. I’m sorry. B. Excuse me. C. Can you help me?
如果你想了解别人是干什么的,你可以问: A. Who are you? B. What do you like? C. What do you do?
The fish is in the river. A. swim B. swims C. swimming
Can I speak ___ John? A.for B. to C.on
Kate ____ playing chess. A. am B. is C. are