Despite some difficulties，China has achieved a lot in the past year ______ .
| A．off balance | B．in the balance |
| C．on balance | D．on the balance |
We look forward to the day when the motorcar has been replaced by some less dangerous ______of transport.
| A．means | B．methods | C．manners | D．ways |
It took him a long time to ______the skills he needed to become a professional artist.
| A．acquire | B．inquire | C．require | D．request |
I’m so glad you’ve come here to ______this matter in person.
| A．lead to | B．see to | C．turn to | D．refer to |
They’ve made full preparations, but it remains ______whether they will be able to do a good job in the experiment.
| A．to see | B．seen | C．being seen | D．to be seen |
The blue sky of the holiday brochure was such a ______this rainy March day.
| A．compare with | B．compare to | C．contrast to | D．contrast as |