Question

【题目】You'll do much better _________ you' re more careful with your spelling.
A.if
B.before
C.although
D.unless

Answer 1

【答案】A
【解析】句意：如果你更加注意你的拼写你会做得更好的。If连词，如果，引导条件状语从句。 before在……之前；C. although尽管；D. unless除非。根据句意，前后之间是条件关系，所以选A。