📊 ความคืบหน้าแบบฝึกหัด:ข้อที่ 169 จากทั้งหมด 212 ข้อ
80%
Vocabulary in Context & Adverbs
4 คะแนน
Directions: Choose the best answer to fill appropriately in the blanks.
The scientist's _______ revealed that the chemical levels in the water were _______ high, posing a threat to the local wildlife.
The scientist's _______ revealed that the chemical levels in the water were _______ high, posing a threat to the local wildlife.