她的表情看起来若有所思。

Her expression seems ___thoughtful.

她总是很体贴地记得朋友的生日。

She is always ___thoughtful enough to remember her friends' birthdays.

他送了一份非常贴心的礼物，考虑到了我的所有喜好。

He gave me a very ___thoughtful gift, considering all my preferences.