听力题目

听力题目：

15. (A). My letter contained important knowledge.

(B). My letter may never have been received.

(C). The company insured my letter.

(D). The company said my letter had arrived.

16.(A). Mark kept on walking. (B). Mark’s foot hurt.

(C). Mark was exhausted. (D). Mark’s car has two flat tires.

答案解析

答案与音频文本：

D C
15. The insurance company acknowledged receiving my letter.

16. Mark was too tired to walk another foot.