问题
选择题
After the trainer was sure that the whale could look after itself, he _______ it into the sea.
A．transported
B．delivered
C．released
D．handled
答案
C
题目分析：句意：在训练员确信鲸鱼能自己照顾自己后，他将它放进大海。四个选项的含义分别是：A. transported运输，B. delivered传送，C. released释放，D. handled处理，所以选C。