[ Grammar for TOEFL ]
Rarely _____ located near city lights or at lower elevations.
A. observatories are
B. are
C. in the observatories
D. are observatories

Random Topics:
SubjunctivesSimple and Compound SentencesComparatives, Superlatives & EquativesGrammar - FutureTenses: Present simple, Past Simple, Future SimpleConditionalsWish, Unless, If sentenceGerund & InfinitivesPrepositions & Modal VerbsFuture or PastOther quiz:
Passive Voice › ViewThe video________________ on Facebook by Alex four days ago.
A. was posted
B. has been posted
C. posted
D. is posted
Grammar › View
You _____ stay up too late.
A. mustn’t
B. should
C. have to
Perfect Progressive Tenses › ViewHe ______ (prepare) for the presentation all morning.
A. had been preparing
B. has been preparing
C. will have been preparing
Grammar › View
“I __________ to let my hair grow longer,” the lady said.
A. want
B. wants
