`46` My father is keen on playing the guitar in his spare time.
`->` be keen on + Ving : thích cái gì
`47` Mr Cường suggested going for a walk
`->` S + suggested + Ving+ O
( Mr.Cuong suggested that we should go for a walk that night.
`->` S + suggested + that + S + should + V + O )
`48` Nam was looking at a magaxine in the doctor's office when I came.
`->` QKTD + when + QKD
`49` It was easy enough for us to get tickets for the concert.
`->` It + be + adj enough + for O + to- V : đủ cho ai làm dì
` 50 ` Mary doesn't cook as well as Jane does.
`->` Câu so sánh bằng