Children under 12 years of age in that country _________ be under adult supervision（监管）when in a public library.
| A．must | B．may | C．can | D．need |
____she is !
| A．How nice a girl | B．How nice girl | C．What nice a girl | D．What nice girl |
It is ___ to be late.
| A．too good a chance | B．too a good chance |
| C．too good chance | D．too good chances |
Great men never give up ___ difficulty.
| A．in a face of | B．in face of the | C．in the face of | D．in the face of the |
It is ____ great pleasure for me to be praised in public.
| A．/ | B．a | C．an | D．the |
They elected Lincoln ___ president of the United States.
| A．a | B．an | C．the | D．/ |