Water is very important to us.We can’t live________it.
– _____ do you think of studying abroad, Lingling? – Well, it all depends! I prefer studying at home.
– Who didn’t turn off the light after school yesterday? – It ______ be Lucy. She told me she was the last one to leave the classroom.
Think before you write, ______ you will get good grades in the exam.
– I didn’t see you at the meeting yesterday. – I _______ an important report at that moment.
– I found my sister ______ my things and took my new magazines. What should I do? – I guess you should tell her to say sorry.