It was playing computer games that cost the boy a lot of time that he __________ doing his lessons.
| A．might have spent | B．ought to have spent |
C．must have spent | D．could have spent |
. There are three basic ways of _____ language to writing, and all known graphic systems use one or a combination of these.
| A．committing | B．attaching | C．comparing | D．relating |
Roses are quite _____ flowers in English gardens.
| A．ordinary | B．common | C．usual | D．general |
American women were _____ the right to vote until 1920 after many years of hard struggle.
| A．ignored | B．refused | C．neglected | D．denied |
. On turning the corner, we saw the road _____ steeply.
| A．departing | B．decreasing | C．descending | D．depressing |
We can't _____ one to change the habits of a lifetime in a short time.
| A．hope | B．wait | C．expect | D．imagine |