Mr. Green is said _____ an experiment to prove the new method of solving the problem when young.
| A．to do | B．to have done | C．to be doing | D．to have been doing |
At the gate of the exhibition hall ,we were requested to ___ our tickets.
| A．make | B．work out | C．produce | D．take |
Everything is so expensive now.It is hardly ___ to save money.
| A．probable | B．likely | C．possible | D．feasible |
If you continue stealing , you will surely ___ in prison .
| A．grow up | B．end up | C．put up | D．bring up |
Does it ___ much to have the TV mended?
| A．demand | B．spend | C．pay | D．cost |
In 1864, Lincoln was ___ President of ___ United States __ time.
| A．/,/ . first | B．the, the , the first | C．/, the, a second | D．/, the, the first |