“I'm sure that they will come today.”There are（ ）content words i

“I'm sure that they will come today.”There are（ ）content words in the above sentence.
A、2
B、3
C、4
D、5
【正确答案】：B
【题目解析】：sure,come,today。实义词就是在句中充当成分时有意义这类词有谓语动词、名词等,虚词,在句中仅仅起连接作用而无词义,这类词有介词、冠词等。