Question

【题目】—Please come over to have dinner ________ you have time.

—Thank you. I will.

A. although B. unless

C. because D. whenever

Answer 1

【答案】D

【解析】句意：——有空请过来吃晚饭。——谢谢。我会的。考查时间状语从句。A. although尽管，表让步；B. unless除非，表条件；C. because因为，表原因；D. whenever无论何时，表时间。根据句意，可知本句是时间状语从句，需用whenever引导，故选D。