The math problem seems very easy, but in fact it is very difficult_______.
| A．to work out | B．being worked out | C．working out | D．to be worked out. |
The new bridge __________ by the famous architect is __________ now.
| A．designing; under construction |
| B．designed; under construction |
| C．designing; under the construction |
| D．designed; under the construction |
Without enough sleep, I just cannot __________ an original thought no matter how hard I try.
| A．come up with | B．come across with |
| C．get along with | D．get in touch with |
Students must have access __________ a good library.
| A．to | B．in |
| C．or | D．with |
E-mail, as well as telephones, __________ an important role in daily communication.
| A．played | B．is playing |
| C．are playing | D．play |
The Group of Eight (G8) __________ the eight richest countries in the world.
| A．consists of | B．is consisted of |
| C．is made up | D．consist in |