Matching Pairs ModalsOnline version MATCH THE CORRECT ANSWER by Estefanía Hallo 1 The house is so dirty - I really must clean it. 2 We have to put the lights out by midnight every night. 3 To save some money, I think he ought to eat at home more often. 4 You can borrow some money if you really want to. 5 Staff wishing to smoke may use the garden. 6 If you want to look smart, you should cut your hair. To express obligation To give advice To give advice To express obligation To give permission To give permission