“Long time no see” is sort of informal but it is part of language that Americans use da

问题补充：

“Long time no see” is sort of informal, but it is part of language that Americans use daily.

A. the; a

B. a; the

C. 不填；the

D. a; a

答案：

A. the; a

B. a; the

(答案→)C. 不填；the

D. a; a

解析：考查冠词的用法。第一空考查短语：sort of 几分，有点，所以前不加冠词，第二空是特指，后面有定语从句修饰，所以先行词前需加the。因此答案选C。