She isn’t answering her phone. She ______ be in a meeting., must, has to, have to, According to company policy, all employees ______ submit their reports by Friday., has to, have to, must, He looks exhausted. He ______ have slept very little last night., must, must to, have to, It is necessary for her to attend the meeting. (rephrase it!), She having to attend the meeting, She has to attend the meeting, She must to attend the meeting, I’m certain they are at home (rephrase it!), I´m certain. They must to be home, I am certain. They must be home, I´m certain. They must to being home, She have to finish the project before tomorrow. (rephrase it!), She haves to finish the project before tomorrow., She have to finish the project before tomorrow., She hast to finish the project before tomorrow., We has to follow the instructions carefully. (rephrase it!), We have to follow the instructions carefully., We haves to follow the instructions carefully., We having follow the instructions carefully.x, You ______ use your phone during the exam. (strong prohibition), hasn´t, mustn´t, haven´t, I ______ go to the doctor yesterday because I was very sick. (past necessity), had to, hadn´t, have to, If he wants to succeed, he ______ work harder and stay focused., must to, has to, mustn´t.

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