After the heavy rain, the level of the lake rose ___ 1 meter ___ 8 meters.
| A．to; by | B．by; to | C．of; to | D．to; to |
----Hey, you haven’t been acting like yourself. Everything OK?
----________ .
| A．Sure , it is | B．I’m fine, thanks | C．That’s good | D．That’s right |
The two animals come from the same family but differ __ body shape and breeding habits.
| A．with | B．from | C．in | D．of |
Please don’t ask me to solve mathematical problems; they are beyond my ____.
| A．guide | B．reform | C．grasp | D．draft |
George always does his best, and that’s ______ I like about him.
| A．who | B．how | C．whether | D．what |
The staff are excited that they have succeeded in what they ____ to do three months ago.
| A．set off | B．set about | C．set out | D．set up |