He is very humorous, while his brother is rather serious. That is ___their difference lies.
A. why B. where C. how D. when
I can still recognize Mr. Johnson, who is standing by the door, even though he looks ___different now.
A. mostly B. slightly C. unlikely D. finally
It is only ___our power to carry out ( ִ��) the rules, rather than make them.
A. within B. on C without D. off
At first his plan seemed impossible to put into practice, but ___it turned out to be quite easy.
A. ever since B. so far C before long D. above all
"I ___asleep all afternoon, so I didn't hear the phone. "he ___to me.
A. lied; lay B. lay; lied C. lay; lay D. lied; lied
The winner of the race is tall and thin; he ___be my friend, Mike, who is short and fat.
A. might B. mustn't C. can't D. should