81. “Did you phone me yesterday?” Tom asked Mary 82. “Have you seen this film before?” He asked me 83. “Is your school near here?” she said 84. Tom asked his friend, “ Do you go to school by bus?” 85. I asked Mary: “ Can you use a computer?” 86. Mr. Ba said: “ Does your father live here?” 87. “Have you ever seen a tiger?” he asked me 88. “Are you learning your lesson?” the girl asked her brother 89. “Did he live with his grandfather?” she asked me 90. ‘Will you visit Dalat?” she said

`81.→` Tom asked Mary if she had phoned him the previous day.
`82.→` He asked me if I had seen that film before.
`83.→` She said if my school was near there.
`84.→` Tom asked his friend if he/she went to school by bus.
`85.→` I asked Mary if she could use a computer.
`86.→` Mr Ba said if my father lived there.
`87.→` He asked me if I had ever seen a tiger.
`88.→` The girl asked her brother if she was learning her lesson.
`89.→` She asked me if he lived with his grandfather.
`90.→` She asked if I would visit Da Lat.

*Cấu trúc:

`+`S + asked/asked + sb/wanted to know/wondered + if/whether + Clause

`+`S + asked/asked + sb/wondered/wanted to know + Clause 

Đối với câu trực tiếp: V-inf/ Don’t + V-inf, please

Đối với câu gián tiếp: S + asked/told/advised/ordered/wanted/warned + sb + (not) + to V-inf