Today, we’ll discuss a number of cases _______beginners of English fail to use the language properly.
| A．which | B．as | C．why | D．where |
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 ( 执行) 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 |