you call me to say you are not ing, I will see you at the theatre at five this afternoon．
A. Though
B. Whether
C. Unless
D. Until
网友回答
A. Though
B. Whether
(答案→)C. Unless
D. Until
解析：A尽管；B无论…；C除非，如果…不…；D直到…才…；句义：如果你不打电话说你不来，我就会在今天下午5点在电影院门口等你。根据句义说明C正确。