We tried to ring you back，Bryan，but we think we ________ your number incorrectly.
| A．looked up | B．got through |
| C．took down | D．worked out |
I wonder what notes he made in the back of his diary ______ things to mend or replace.
| A．by | B．in | C．with | D．of |
---Why is the librarian looking so hard at me?
---You _______ to read aloud in the reading room.
| A．don't suppose | B．haven't supposed | C．are not supposing | D．are not supposed |
The fire was finally brought under control,but not ________ great damage had been caused.
| A．after | B．before | C．since | D．as |
Cancer is proved to be second only _____ heart disease as a cause of death.
| A．of | B．to | C．with | D．from |
You______ her in her office last Friday; she's been out of town for two weeks.
| A．needn't have seen | B．must have seen | C．might have seen | D．can't have seen |