—Have you worked here since you graduated?
—No, I ____________at a factory in Beijing for six years.

-- Why didn’t you come to attend our party last night ?
--- Sorry, Ｉ__________ an interesting programme on TV with my sister.

I have to walk to school today because my bike _____now.

— How long have you been in this office?
— Just a few minutes．My cousins _______ here together with me．

— Why don’t we choose that road to save time?
— The bridge to it _______．

– Tom, you left the lights in the classroom on.
– Oh, sorry, I _________ to turn them off. Thanks for your reminding.

When I entered the step-classroom (阶梯教室), the lecture __________ and the audience __________ attentively.

—Hey! What's the rush?
—The plane ________ at 4∶00 and I need to see my uncle off.

—Jane, have you finished your paper?
—No, I ________ my sister with her drawing all the morning.

---Alice, why aren’t you at work today?
---I ________a day off.