用方框中所给单词的适当形式填空,使对话通顺、正确。每词仅用一次(每空一词)。
A: This party is such a great idea!
B: I agree. It _____ three years since we last saw our primary school classmates.
A: It’s interesting to see how people have changed.
B: Billy has changed so much! He used to be so shy and quiet.
A: Yeah his face always _____ red when he talked to girls!
B: I used to see him reading in the library every day.
A: That’s _____ he was a really good student. He studied hard and got good scores on his exams.
B: Did he use to wear _____?
A: Yes, and he used to be thin, too. But look _______ big and strong he is now!
B; He’s so popular now. Look at all the girls around him!