A.it is believed to be boring and repetitive |
B.it is too difficult for people to learn to jump |
C.it benefits the cardiovascular system |
D.it requires little equipment, time and space |
A.there is only one proper way to follow |
B.the usual way should not be used again |
C.the easiest way is always the best one |
D.there are different kinds of ways to follow |
A.only prepares the brain for learning |
B.is suitable for students only |
C.helps both brain hemispheres work together |
D.can be dangerous for old people |
A.He strongly argues against it. |
B.He is sitting on the fence of it . |
C.He is for it. |
D.He knows little about it . |