—I think it’s impossible for us to work out the plan in just two days. It’s too difficult.—You’re right. We can’t be _______ careful while working on it.
I don’t understand the text, there are few new words.
—What was wrong with Lucy yesterday? ----An accident _____ her.
Xi’an is a city with many places of interest and _____ tourists come here every year.
Sixty percent of all Chinese are farmers and they are than people who live in the cities.
I used to . But now I get used to doing everything. I’m successful at last.