Though his teachers were quite satisfied with his performance, he thought he ____ better if he had tried harder.
| A．could have done | B．should have done |
| C．ought to have done | D．must have done |
We can't _____ one to change the habits of a lifetime in a short time.
| A．hope | B．wait | C．expect | D．imagine |
American women were _____ the right to vote until 1920 after many years of hard struggle.
| A．ignored | B．refused | C．neglected | D．denied |
Roses are quite _____ flowers in English gardens.
| A．ordinary | B．common | C．usual | D．general |
The illness from which Mary is suffering has now been _____ as hepatitis (肝炎).
| A．diagnosed | B．determined | C．deduced | D．discovered |
A completely new situation is likely to _____ when the school leaving age is raised to 16.
| A．arouse | B．rise | C．arise | D．abide |