[ Grammar ]
The planets are roughly Jupiter-size, the researchers estimate, but their orbits are much ________ out, at 12 billion and 21 billion kilometers.
A. farther
B. further

Random Topics:
Grammar - must & have toMaritime Vocabulary and GrammarArticles and NounsSentence and FragmentGrammar ElementaryDo not or Does notSubject Verb Agreement; Indefinite PronounsMixed TensesPerfect Tenses of VerbsGrammar - TOEICOther quiz:
Vocabulary & Grammar › ViewIt is ____________ knowledge that water boils at 100°C.
A. common
B. popular
C. regular
D. normal
Gerunds As Objects of Prepositions › View
Simon is keen ……. on the trip
A. going
B. goes
C. to go
D. Both A and C
Conditionals › ViewI’m sure you’ll pass the exam as _____ as you study hard.
A. short
B. long
C. providing
D. condition
Conjunction › View
The florist delivered red roses ________ the customer wanted pink ones.
A. but
B. because
C. so
