问题
选择题
It is said that our body _______ 206 bones; if one of _____ is broken, it will cause inconvenience of some kind.
A．makes up of; them
B．is made up of; them
C．is made up of; which
D．makes up; which
答案
答案：B
考查短语及代词。be made up of 由……组成；make up组成。them为代词，指代206 bones。故选B。