问题
.Some people say more but do less ______ others do the opposite
A:once
B:when
C:while
D:as
B:when
C:while
D:as
正确答案是：
同类题型
. He wanted to make sure __________.
Bob, _______ of the two boys, is the second tallest boy in our class.
Teenagers allowedto drive in the street .
The more ______ you listen to the tape, the ______ you will find it to understand.
He suddenly fell ill, ______ prevented him from attending his friend’s wedding.