单选题 (From the airplane), passengers are (able) (to clearly see) the outline (of) the whole island.
【正确答案】 C
【答案解析】将to clearly see改为to see clearly,副词修饰动词时,一般放于动词之后。该句的意思是,“从飞机上,乘客们能清晰地看到整个岛屿的轮廓”。