他说的话是真的，我们都亲眼看见了。

What he said was ___true, we all saw it with our own eyes.

请确保书架摆放端正后再固定螺丝。

Make sure the shelf is ___straight before you tighten the screws.

即使面对诱惑，她依然对朋友保持忠诚。

She stayed ___true to her friend even when tempted.

她的戒指是用真钻石做的。

Her ring is made of ___true diamonds.