The new car won’t go into production soon. The engine of it hasn’t been fully .A. carried

问题补充：

The new car won’t go into production soon. The engine of it hasn’t been fully .

A. carried out

B. worked out

C. tested out

D. put out

答案：

A. carried out

B. worked out

(答案→)C. tested out

D. put out

解析：考察动词短语辨析。A执行；B锻炼，经计算出，制定出；C测试，监测；D扑灭，生产，出版；句意：这种新车还没有投入生产，它的发动机还没有完全通过监测。根据句意说明C项正确。