He is ____our teacher; he is also our best friend.
A.less than |
B.rather than |
C.more than |
D.better than |
--Why does the river smell terrible?
--Because large quantities of water__________.
A.have polluted |
B.is being polluted |
C.has been polluted |
D.have been polluted |
_______that they lost the game, tears came down Kate’s face.
A.On hearing the news |
B.When heard the news |
C.The moment she heard the news |
D.While hearing the news |
Children’s brains can’t develop properly_______ they lack protein(蛋白质).
A.when |
B.since |
C.because |
D.unless |
With all his attention ____ on the computer game, the boy even didn't notice his mother came in.
A.was fixing |
B.was fixed |
C.fixing |
D.fixed |
Though ______ of danger, sightseers have been flocking to the site where the world’s biggest terrorist Bin Laden lived.
A.warned |
B.warning |
C.being warned |
D.having warned |