1. I find it is not easy to complete this task in only 1 hour.
Sb find it is/was (tùy từng thì) adj to do smt: ai đó thấy như thế nào khi làm gì
2.I don't mind giving you a lift.
don't mind + Ving: không phiền khi làm gì
3. The boy suggested his father that they should go out for lunch.
suggest + V-ing.
suggest sb (that) S should do smt: đề nghị ai đó làm gì
4. The stolen money in the man's car has been found by the police.
Câu bị động thì HTHT.
5. It takes her 1h to go to work by bicycle.
take sb time to do smt: mất thời gian để làm việc gì