---__________ did Tara learn ice skating?---For three years.A. How long B. How old C. How often
---Could you tell me ________?---Sorry. I don’t know. I didn’t attend the meeting.
Three months ________ since we met last time.
It’s said that this kind of milk ________ well this year. It will be sold out soon.
You can’t imagine ________ chatting online is!
---Why didn’t you go shopping with me two hours ago?---Because my mother________ me outside.