We all thought that Betty could have run _______ if she had worn the sports-shoes that day.
A．even faster B．more slower C．much quickly D．still fastest
In that traffic accident last night the man who hit five people in a row had drunk so much that he could no longer_______ between fantasy and reality.
A．distinguish B．disguise C．disturb D．disgust
Mr. Andrew taught his students how to develop the basic skills in the physics class, ______ everything through jokes and experiments.
A．to explain B．explained C．explaining D．explains
Mr. Bryan is a/an _______ secretary in our office, for he is able to do tasks successfully, without wasting time or energy.
A．effective B．efficient C．flexible D．sufficient
There was enough evidence to prove that the explosion in Robinson’s house _______ the leak of natural gas.
A．resulted in B．resulted from C．led to D．contributed to
The Browns have six children altogether. It is obvious that ________ little money the present job brings Mr. Brown can hardly support so large ________family like that.
A．/; the B．a; the C．a; / D．the; a
