Question

He's given an important talk on the differences between the second language and

He's given an important talk on the differences between the second language and the foreign language, ________?
A. hasn't he
B. doesn't he
C. isn't he
D. wasn't he

Answer 1

答案A
由动词过去分词given可知he's是he has的缩写形式，故附加问句部分应用hasn't。