Ninety-six point five percent of the water on the earth ______ sea water.
| A．are | B．is | C．was | D．were |
The little time I had outside of school was _______ with work.
| A．taken on | B．taken off | C．taken up | D．taken away |
Many students ______independent learning skills because the education system spoon-feeds them.
| A．are lack in | B．lack | C．lack in | D．lack of |
Mary is a newcomer. I suppose it will take her a long time to _______ herself to the new surroundings.
| A．adopt | B．devote | C．adapt | D．commit |
Thank you for giving me so much help. I _______in the experiment without your support.
| A．have failed | B．will fail | C．would have failed | D．must have failed |
One of the functions of _______UN is promote respect for human rights, making the world _______ better place.
| A．the; a | B．不填; the | C．不填; a | D．a; the |