[ Grammar ]
Into Thin Air, a best-selling book, is fascinating, however, it is challenging stylistically.
A. No change
B. delete comma after book
C. change comma after fascinating to a semicolon
D. delete the comma after however

Random Topics:
Auxiliaries VerbPresent Simple and Continuous TensePassive and Active SentencesPresent Simple TenseDefinite ArticlesConjunctionAdjectivesAdverbs of Time and PlaceInfinitive GerundAdjective vs AdverbOther quiz:
Grammar › ViewIdentify the clause type:
Since I went to Ella’s, I’ve been looking forward to FroYo Friday!
A. Adjective
B. Adverb
Tenses › View
She ___ on the project all day tomorrow.
A. works
B. will work
C. will be working
D. is working
Linking Verb › ViewThis ripe green apple tastes sweet and juicy.
- action verb
- linking verb
Modals › View
You _____ heard of him. Everyone knows him.
A. will have
B. can have
C. must have
