______ is troubling me is ______ I don’t understand ______ he said.
| A．What; that; what | B．It; that; what |
| C．That; that; what | D．what; that; which |
It took us quite a long time to get to the amusement park. It was __________ journey.
| A．three hour | B．a three-hours |
| C．a three-hour | D．three hours |
Every morning Mr. Smith takes a __________ to his office.
| A．20 minutes' walk | B．20 minute's walk |
| C．20-minutes walk | D．20-minute's walk |
New technologies have made __________ possible to turn out new products faster and at a lower cost.
| A．that | B．this |
| C．one | D．it |
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 |