问题
选择题
The scientists are now trying to discover what use could be ________ such material.
A．made out
B．made up
C．made of
D．made from
答案
答案：C
因为此题是make use of (利用) 的被动式。
搜题请搜索小程序“爱下问搜题”
The scientists are now trying to discover what use could be ________ such material.
A．made out
B．made up
C．made of
D．made from
答案：C
因为此题是make use of (利用) 的被动式。