walking along the street and all ofa sudden, a car cut in and knocked me down．— You can never be ______ in the street．

It’s the third time that Li Ming has been to Xi’an , _______?

Jack used to ________ to school.—-Yes, but now he’s used to ________the bus.

straight on and you’ll see a church You won’t miss it

It is said that many businessmen in America have _______ much of their money to the people in need.-A growing number of Chinese are doing so as well.