30．—Peter looked tired and a little absent-minded at the meeting．
—He _____ up too late．
| A．may stay | B．could stay |
| C．should have stayed | D．must have stayed |
The lost car of the Lees was found _____ in the woods off the highway.
| A．vanished | B．abandoned | C．scattered | D．rejected |
American women were _____ the right to vote until 1920 after many years of hard struggle.
| A．ignored | B．refused | C．neglected | D．denied |
In this factory, suggestions often have to wait for months before they are fully _____.
| A．admitted | B．acknowledged | C．absorbed | D．considered |
When I took his temperature, it was two degrees above _____.
| A．average | B．ordinary | C．regular | D．normal |
Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store.
| A．anyone | B．the others | C．that | D．the ones |