—Did you visit the museum last week?
—No, we _____, but we spent too much time shopping.
| A．could have | B．could | C．must have | D．must |
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 |
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 |