The "that" in the clause of the college entrance examination can be omitted. What is the specific component?

Hello, classmate, I am Li Peng, a teacher from New Oriental Youneng Learning Center

The first is the noun clause. When that introduces an object clause, it can be omitted, i think (that) he is wrong; when that introduces an predicative clause, it can be omitted, such as the reason is (that) he is wrong. In these two cases, that is a conjunction , not as an ingredient.

In addition, that, which serves as the object of current events in the attributive clause, can be omitted. For example, this is the most amazing place (that) i have ever seen. In the attributive clause, that is a relative pronoun. In the example sentence, that is the object of the clause, and it can also be the subject of the clause. Another example is this is the place that we visited yesterday. .The "that" here cannot be omitted.

I wish you good results.