-- Why didn’t you come to see the film with your parents last weekend? -- I _____ my lessons for the month- exam.
As we can see, Peter is very happy, so he___________ have passed the exam. After all, it’s not difficult at all.
—Is Bob still a volunteer? —No, but he _____. He worked for the 2008 Beijing Olympic Games.
You’d better _______ because I’m busy writing a letter to my parents.
Last month we students all had some great speeches. The headmaster together with some other teachers __________ to attend it, too.
---Is Johnson on duty today? ---It ________ be him, but I’m not sure.