The road is covered with snow. I can’t understand _____ they want to go to school by motorbike.
| A．why | B．when | C．since | D．that |
Should you have enough energy left after a day on the slopes, you can take a dip in the pool, _________at the gym or go dancing in one of the city’s many hotel and clubs.
| A．work out | B．carrying out | C．take up | D．turning out |
Tom insisted that what he said_________true and insisted that he_________free.
| A．be; should be set | B．should be; should be set | C．was; be set | D．was; would set |
Slowly but surely, the city_________a successful one_________of its cultural diversity.
| A．became; proud | B．was becoming; proudly |
| C．became; proudly | D．was becoming; proud |
These years China_______a boom in scientific and technological development.
| A．enjoyed | B．has been enjoying | C．had enjoyed | D．enjoys |
．—Have you finished the work?
—Not yet. I _____ to do it just a moment ago.
| A．set about | B．set up | C．set out | D．set down |