What ______ public is concerned about is whether medical workers and scientists will be able to find for this new disease in a short time.
| A．不填;不填 | B．不填;the | C．the;不填 | D．the;a |
When he the door, he found his keys were nowhere.
| A．would open | B．opened | C．had opened | D．was to open |
My parents in Hong Kong. They were born there and have never lived anywhere else.
| A．live | B．lived | C．were living | D．will live |
The art show was being a failure; it was a great success.
| A．far from | B．along with | C．next to | D．regardless of |
The place the bridge is supposed to be built should be the cross river traffic is the heaviest.
| A．which; where | B．at which; which | C．at which; where | D．which; in which |
Students are always interested in finding out they can go with a new teacher.
| A．how soon | B．how often | C．how long | D．how far |