—I went to work on foot yesterday, though it was raining cats and dogs.
—You a bus. You were likely to get a cold.
| A．must have taken | B．would take |
| C．should have taken | D．could take |
It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
| A．process | B．attention | C．measure | D．part |
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 |
His landlady gave him a week's _____ to leave the flat.
| A．threat | B．notice | C．advice | D．caution |
The noise was so _____ that only those with excellent hearing were aware of it.
| A．dim | B．soft | C．faint | D．gentle |