--- That blue T-shirt with Beckham’s picture on it ________ be David’s. He admires him a lot.--- No, it ________ be his. He hates blue.
They were all very tired,but ________of them took a test.
I was born _______ March,1999.
-There is someone knocking at the door. - It ______ be Jimmy, he has gone to ShangHai .
- Why didn’t Sally play the violin at the concert last night? - She said that her hand hurt,but that was only a(n) ____.I saw her play tennis just now.
All the students are talking and laughing in the classroom and it’s______ .