B. Choose the correct modal verb to complete the sentences. Make sure to put the verb in the correct tense. ( past or present) . Must \Have to Cant \Musnt Can \ Be able to Dont have to 1.She .....- finish rhe essay yesterday because her teacher asked het to do so . 2. You ,...........come back in the afternoon . All classes have been cancelled. 3. You..... take a break! You `ve been studying too long.