When I wanted to buy a computer, I saved as much as I could, and my mother the rest of the money.
| A．kept up | B．held up | C．tool up | D．made up |
She spoke very confidently because she wanted to make a great___________ on her employer．
| A．influence | B．pressure | C．impression | D．effect |
The achievements of the greatest minds in science could never have been reached________ the patient work of hundreds of others．
| A．were it not for | B．had it not been because |
| C．had it not been for | D．if it had not been |
The plans should be drawn as ________as possible，showing all the measurements．
| A．authentic | B．accurate | C．correct | D．proper |
In that south American country, _____bicycle is not_______ popular means of transportation．
| A．the；a | B．a；不填 | C．a：the | D．the；the |
The professor advised us to think outside the box and to________ new, different, or unusual solutions．
| A．put up with | B．come up with |
| C．keep up with | D．catch up with |