A．mysteriousB．naturalC．grandD．unique

【C8】A．fullyB．simplyC．seriouslyD．uniquely

MANNERED:A．advancedB．naturalC．childishD．lucidE．unaware

MANNERED:A．advancedB．naturalC．childishD．lucidE．unaware

Hes not our______son—we adopted him when he was three.A．primitiveB．naturalC．firstD．origina

【C7】A．mysteriousB．diplomaticC．imaginaryD．personalized

The _____ temperature of the human body is between 36 ℃and 37℃.A.normalB.naturalC.regula