The government placed _____ on the numbers of foreign cars that could be imported.
| A．limitations | B．restraint |
| C．requirements | D．restrictions |
Though ______ money, his parents managed to send him to university.
| A．lacked | B．lacking of | C．lacking | D．lacked in |
To her disappointment，what she had devoted herself to _______ in nothing but failure.
| A．resulting | B．results | C．has resulted | D．resulted |
—Could you give us an account about the big fire?
—OK. It was a Friday evening _______the fire broke out and ten persons were killed in it.
| A．where | B．on which | C．that | D．when |
____ is our belief that improvement in health care will lead to a stronger ,more prosperous economy.
| A．As | B．That | C．This | D．It |
Although ______ for many years, the two old sisters recognized each other at once.
| A．having been separated | B．being separated |
| C．having separated | D．had been separated |