__________ the plan many times, but he still didn’t understand.
| A．Having told him | B．Having been told him |
| C．Though he had been told | D．He was told |
Fifty-six ______ twenty-seven makes eighty-three.
| A．plus | B．minus | C．times | D．divided by |
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 |
Peter was ______ to come to school this morning.
| A．a second | B．the second | C．a No. two | D．the two |
Tom with his friends ______ volleyball since three o'clock.
| A．has been playing | B．is playing | C．have been playing | D．have played |
All that can be said ______.
| A．has been said | B．have been said | C．is said | D．are to be said |