Compare the adverbs in the following sentences: They work hard. We work harder.
A. harder is the superlative form of hard.
B. harder is the comparative form of hardest.
C. ‘harder’ is the comparative form of ‘hard’.
D. harder is an adjective, not an adverb.

Random Topics:
Have to/Has toSubjunctivesTenses and ArticlesSynonymTenses - Present and PastConnectorsGrammar - Present Perfect with already, just, yetConjunctions in Complex SentencesWish SentencePersuasive TextOther quiz:
Grammar › ViewThis week the weather will be changeable but by Friday it will be __________.
A. stronger
B. more settled
C. thicker
Past Tense › View
Yesterday … .
the correct sentence to continue the word is …
A. I and my parents go to Surabaya by train.
B. I will go to Semarang by train.
C. I went to Semarang by train.
D. I go to Semarang by train.
Grammar › ViewIf there is a fire you _______________ act quickly!
A. Can
B. Must
C. Don’t have to
D. May
Grammar › View
__ of my parents have ever been to South America.
A. both
B. etiher
C. neither
D. nor