Warmblooded animals live an active life even in freezing winter，which helps them to ________ their normal body temperature.
| A．keep up | B．build up | C．bring up | D．pick up |
When ________ imported goods，people are ________ about all the different labels on food these days.
| A．choosing；confused | B．choosing；confusing |
| C．chosen；frightening | D．choosing；frightened |
What he said just now _____ me of that American professor.
| A．accused | B．reminded | C．informed | D．memorized |
When copying the paper，be careful not to ________ a single word.
| A．leave out | B．come out | C．begin with | D．come up |
Forty people got injured in a bus accident. Every ________ ambulance was rushed to the scene of the accident.
| A．available | B．enjoyable | C．suitable | D．acceptable |
Come and see me whenever ________.
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it will be convenient to you |