-- Look! The man at the gate _____ be our headmaster. He is always standing there every morning.
--No, it _____ be him. He is holding a meeting in the office now.
A. must, can’t B. must, mustn’t C. can’t, can’t D. can’t, mustn’t
-- Look! The man at the gate _____ be our headmaster. He is always standing there every morning.
--No, it _____ be him. He is holding a meeting in the office now.
A. must, can’t B. must, mustn’t C. can’t, can’t D. can’t, mustn’t
A