35.They had a number of suggestions as to __________ to cut down the rate of drunken-driving.
A.how B.whether C.why D.if
34.__________ confidence in herself, she decided to give up the project.
A.Lost B.To lose C.Having lost D.Having been lost
33.It seems as if they are going to __________ us a lot of money for the party hall.
A.cost B.ask C.demand D.charge
32.- What does the sign in the hall read?
- No person __________ carry explosive things onto High-Speed Train.
A.must B.will C.may D.shall