他对朋友相当坦白。用英语怎么说？

他对朋友相当坦白。

He is quite candid with his friends.

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。

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。

quite

adv. 相当，很，非常，确实如此；

例句
For a novelist, that's quite an accomplishment...
对于一位小说家来说，那是相当了不起的成就。

candid

adj. 率直的，坦白的，公正的，偷拍的；

例句
Nat is candid about the problems she is having with Steve...
娜特对她眼下和史蒂夫之间的问题毫不隐瞒。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

friends

n. 朋友( friend的名词复数 )，资助者，同胞，指做傻事或烦人的事而说话者不认识的人；

例句
Old enemies can become new friends even if all their national interests are not in complete accord.
即使国家利益不尽相同，他们也可以化敌为友。