These students are quick at learning．We'll have them __________ with new methods．
A．training B．to train
C．to be trained D．trained
These students are quick at learning．We'll have them __________ with new methods．
A．training B．to train
C．to be trained D．trained
D
本题是对动词使用的考查。have在英语中是一个极其重要的词，它的用法有很多。此题中have
sb．trained表示“给他们用新方法训练”。