问题

___ regular exercise is very important, it’s never a good idea to exercise too close to bedtime.

A:It
B:As
C:Although
D:Unless

正确答案是：

同类题型

e something lying in the corner,moving— Let me see ________

After ________ his right arm, he keep on ________ with his left arm.

. It was in this house ________ he heard some strange sounds.

Jim, have you donehomework_________—- Yes, I have _____ done it.

Perhaps we could volunteer for SITRZ during the holiday.—