. In face of _______ failure, it is the most important to keep up ________ good state of mind.
| A．不填; a | B．a; 不填 | C．the; 不填 | D．不填; the |
A smile can help us _____________ difficult situations and find new friends in a world of strangers.
| A．get across | B．get through | C．get out | D．get off |
We should all remember that some great scientific discoveries _____________ by chance.
| A．gained | B．discovered | C．occurred | D．earned |
I had only a few _____________ with Miss Gao, though we work in the same school.
| A．laughter | B．handshakes | C．amusement | D．contacts |
In case it thunders, we’d better _____________ the electricity at once and turn off the TV.
| A．cut in | B．cut off | C．cut down | D．cut away |
He is such a _____________ teacher that he knows what his students need.
| A．practical | B．humorous | C．mild | D．typical |