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Questões por página:
Choose the option in which the modal verbs best express, respectively, strong logical deduction in the present and mild advice about a future action:
In which sentence are auxiliary verbs correctly used to form the aspect intended?
Mark, a company supervisor, originally said:

"You should submit the final report by Friday, and you must include all relevant data."

If his statement is reported indirectly to a colleague, which of the following options best represents the correct transformation into reported (indirect) speech, considering modal verbs and tense changes?
Choose  the altervative with  the  correct  passive  voice  form  of the sentence below: 
    “The pilot has flown the jet for hours.”
Choose  the  alternative  which  best  replaces  the  word  mustn’t in the sentence below: 

     “Passengers  mustn’t  fiddle  with  their  mobiles  while  the  aircraft is preparing for landing.”