1.D Only about five people out of a hundred are left-handed.
2.D New-born babies can take things with either of their hands
3.D Scientists have found these monkeys like to use one of their hands more than the other but it can be either hand.There are so many right-handed ones.
4.B We live in a right-handed world.
5.B 因为这个世界上用右手的人多,所以对用左手的人有很多的不便.