1) I am certain Liz isn`t interested in your ideas.
can _______________________________
2) I strongly advise you to take up sport.
must _____________________________
3) I am certain Sarah is bored with her work.
must _____________________________
4) It was necessary for Ann to cook dinner. But she did.
need ___________________________
5) Jack managed to unlock the door.
able ___________________________
6) I am sorry but you are not allowed to enter this room.
must ___________________________

1) A friend has called at your flat. Invite him to come in.
2) Offer your visitor a cup of tea.
3) You are walking in town with a friend. Suggest having a cup of coffee.