----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 and hard while working on it.
— Helen, your English is pretty good. How can I improve my English? —I think you can improve your English ______ reading more.
Super Junior is ________ great group. I really like their songs and dances.
Liu Xiang runs ________ fast ________ no one can catch up with him.
When people want to relax themselves, they prefer ________ TV or listen to music rather than ________ newspapers.
The young man ________ is a friend of mine.