Question

In which sentence does an adverb clause modify an adverb

Answer 1

Answer:

D: A full lunar eclipse last longer than a partial eclipse.

Explanation:

Because the adverb would be "longer" and the adverb clause would be "than a partial eclipse".

Answer 2

Answer:

The answer is indeed letter D. A full lunar eclipse lasts longer than a partial eclipse.

Explanation:

In the sentence "A full lunar eclipse lasts longer than a partial eclipse" we can find an adverb, "longer", modifying the verb "lasts". The adverb itself is also modified by an elliptical adverb clause, "than a partial eclipse". This clause is elliptical because the verb that should appear in it is implied - the regular clause would be "than a partial eclipse lasts/does".