`6.` Ann asked her friend to help her make a decision.
`→`Cấu trúc asked ở dạng câu mệnh lệnh : S + asked + sb + (not) to V-inf
`7.` The librarian told the student not to leave those books on the table,but to put them back on the shelf.
`→`Câu trần thuật dạng câu mệnh lệnh (phủ định) : S +told + O +not to-infinitive.
`8.` The nurse told the child to be a good girl and sit quietly for five minutes.
`→`Câu trần thuật dạng câu mệnh lệnh : S + told + O + to-infinitive.
`9.` My companion advised me to leave my things there.
`→`Cấu trúc : S + advise + O+to inf.
`10.` The chairman asked the participants not to discuss that question at the moment.
`→`Cấu trúc asked ở dạng câu mệnh lệnh : S + asked + sb + (not) to V-inf