People have realized that they should go on _____ balanced diet and do _____ exercise every day.
| A．a; / | B．the; an | C．the; the | D．/; an |
There are plenty of jobs __________ in the western part of the country.
| A．present | B．available | C．precious | D．convenient |
More and more high-rise buildings have been built in big cities __________ space.
| A．in search of | B．in place of | C．for lack of | D．for fear of |
—Ourholiday cost a lot of money.
—Did it? Well, that doesn't matter __________ you enjoyed yourselves.
| A．as long as | B．unless | C．as soon as | D．though |
The retired man donated most of his savings to the school damaged by the earthquake in Yushu，__________ the students to return to their classrooms.
| A．enabling | B．having enabled | C．to enable | D．to have enabled |
We had to wait half an hour __________ we had al-ready booked a table.
| A．since | B．although | C．until | D．before |