. When he ______ the door, he found his keys were nowhere.
| A．would open | B．was to open | C．had opened | D．opened |
Many a school and many a hospital ______ since 1949.
| A．have set up | B．has set up | C．have been set up | D．has been set up |
All that can be said ______.
| A．has been said | B．have been said | C．is said | D．are to be said |
Tom with his friends ______ volleyball since three o’clock.
| A．has been playing | B．is playing | C．have been playing | D．have played |
Peter was ______ to come to school this morning.
| A．a second | B．the second | C．a No. two | D．the two |
Every means ______ tried, yet no result ______encouraging up to now.
| A．have been ...is | B．has been...has been | C．have ...has been | D．has...is |