Answer: c test points: consistent/idioms. Analysis: the numbers are complex, and the articles should be followed by a singular noun, and a (...) the numnber of fixed phrases.
Match / Idioms number: Answer: C test points. Analysis: numbers are complex, but the articles should be connected after a singular noun, and a (...) numnber of fixed phrases.
Answer: C test point: the number of consistent / idioms. Analysis: numbers is plural, and article a should be followed by a singular noun, and a (... Of numnber is a fixed phrase.