A, that b and Cso, that d, which one
I'm sorry, so ... that sentence pattern, why not?
Is there any difference between the two ... so so ... as usage?
After the exam, our math teacher came up with a difficult problem, so none of us worked it out.
A: choose B.
Analysis: This question examines the usage of attributive clauses. In last semester's exam, a problem given by the math teacher was so difficult that no one could work it out. As leads the attributive clause to modify "check the question" and acts as an object in the clause because its antecedent is preceded by the qualifier so. If it is regarded as a "so ... that ..." structure, the result adverbial clause should be added with an object, which is "calculated".
This question is likely to be mistakenly chosen as a. People think it is this ... that ... sentence pattern. In this question, you can't choose a, because in so ... that ... that is used as a conjunction, not a sentence component, and there is no object in the clause, so you should choose B.as to guide an attributive clause, and as is the object of work out in the clause. When as leads attributive clauses, it is usually used with so, same, etc. If it is added after work, then this question should choose that.
Should be about the same.