Question

【题目】______ regular exercise is very important, it's not a good idea to exercise too late.
A.If
B.Because
C.Although
D.Unless

Answer 1

【答案】C
【解析】if”如果“；because”因为“；although”尽管；虽然……但是“；unless”除非“。句意：虽然有规律的运动是很重要的。但是太锻炼的太晚不是个好主意。可知选C。