______ regular exercise is very important,it's never a good idea to exercise tooclose to bedtime.(2011 .天津)
A.It |
B.As |
C.Although |
D.Unless |
推荐套卷
______ regular exercise is very important,it's never a good idea to exercise tooclose to bedtime.(2011 .天津)
A.It |
B.As |
C.Although |
D.Unless |