—I saw Mr. Green at school this morning. —No, it _____ him. He flied to Canada last week. A. can be B. must be C. can’t be
-- Who are you going with? -- ____________________
______ are you doing this evening?
-- Will you be back _____ five in the afternoon? -- I am not sure, maybe later than that.
Who is _________ in your school, Mr Wang or Ms Lee?
He is ________ than ______ boy in the football team.