问题
Using many symbols makes ______ to put much information on a single map.
A:possible
B:it possible
C:that possible
D:it is possible
B:it possible
C:that possible
D:it is possible
正确答案是：
同类题型
_____do you sleep every night? —Six to eight hours.[ ]
Must we keep the window _______ all the time? —No, you don’t have to.
The English-Chinese dictionary helps me a lot. I often _____ new words in it.
The readers of that magazine are ________ young people.
We have no idea ________.—It’s heard that he is Mr. Green’s son.