It is dark outside, so please____ your step while going down the stairs.
| A．see | B．look | C．notice | D．mind |
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 |
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 |
Two kilograms ______ too heavy for a sick man.
| A．is | B．are | C．was | D．were |