—Tom came to work last Friday ,but no one has seen him since.
— he have had an accident ?
| A．Should | B．Must | C．Might | D．Could |
It was necessary to _____ the factory building as the company was doing more and more business.
| A．extend | B．increase | C．lengthen | D．magnify |
We can't _____ one to change the habits of a lifetime in a short time.
| A．hope | B．wait | C．expect | D．imagine |
. On turning the corner, we saw the road _____ steeply.
| A．departing | B．decreasing | C．descending | D．depressing |
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 |