专升本考试

【单选题】 Many animals may be trained to do simple jobs if they know ______.
A．who their trainers are
B．they will be praised by their trainers
C．they will get a reward
D．something dangerous will happen to them

网考网参考答案：C
网考网解析：
参见句子：The scientists say that many different animals may be trained to do a number of simple jobs if they know they will get a reward for doing them． 查看试题解析出处>>