Consider the words from the text; then analyse the statement...

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Q1294320 Inglês
Instruction: Answer question based on the following text.

English Language Teacher Relocate to China, TEFL


(Source: https://jobs.disneycareers.com/job/china/disney-english-foreign-trainer-in-china-eslteacher/391/5674140?loc=london&cid=15969&codes=INDEED)
Consider the words from the text; then analyse the statements that follow:
 highly (l.08).  delivery (l.09).  monthly (l.26).
I. All words follow the same spelling rule. II. All words are adverbs. III. The suffix added changes adjectives into adverbs.
Which ones are INCORRECT? 
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