Question

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

Answer 1

【答案】A
【解析】句意：如果你对你的拼写更认真一点，你会做得更好。if如果；before在……前；although虽然；unless除非。根据句意可知选A。