The river is very dirty.It smells_(terrible).It is _(terrible)polluted.

问题描述:

The river is very dirty.It smells_(terrible).It is _(terrible)polluted.

第一个空.terrible
第二个空 terriblely
前者中smell是系动词,后面+形容词
后者是用副词来修饰动词polluted{污染}的