With a travelling speed of up to 350 kilometres per hour, the railway to be built between Beijing and Shanghai _______ the journey time from 12 hours to 5 hours．

.Nobody knew when the fire ________, but they knew it ________ the next morning.

When I approached to the subway entrance, an explosion occurred. This ___my first experience, I got into panic

You would not have made so silly mistakes , but it is a pity you _______ my advice.

.Don’t worry! You won’t miss her at the airport. She ___a red T-shirt and a white skirt at that time.

—Have you been teaching here since graduation?
—No, I _____ on a farm for five years．

Great changes_____ in the small city in the last 20 years.

--You speak very good French!
---Thanks. I _________ French in Sichuan University for four years.

--- Have you finished reading Jane Eyre?
--- No, I _________ my homework all day today.
A am doing     B will do     C has done       D do

—I’ll come to attend your speech at 9:00 tomorrow morning.
—I’m sorry. By then my speech _________ and I __________ TV at home.