Because he the secret his friend became very angry.A. put outB. let outC. gave outD. lef

问题补充：

Because he the secret, his friend became very angry.

A. put out

B. let out

C. gave out

D. left out

答案：

A. put out

(答案→)B. let out

C. gave out

D. left out

解析：动词短语辨析。A生产，扑灭；B泄漏，出卖；C发出；D遗漏；省略；句意：因为他泄漏了那个秘密，他的朋友非常生气。根据句意说明B正确。