他所知道的消息可信吗?用英语怎么说？

他所知道的消息可信吗?

Is he rightly informed?

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

rightly

adv. 正确地，公正地，肯定地，无疑地；

例句
The judge quite rightly says that he has to interpret the law as it's been passed...
法官说他必须按照该法的立法初衷来阐释它，这完全没错。

informed

adj. 了解情况的，见多识广的，有情报根据的，消息灵通的；v. 告诉( inform的过去式和过去分词)，(inform oneself)使了解；

例句
Dan informed her that he would be out back on the patio cleaning his shoes...
丹告诉她说他要去房子后面的露台上擦鞋。