[ Grammar ]
Most scientists assume that the area ___ by a huge meteorite.
A. must have been struck
B. must have been strike
C. must be struck
D. must have struck

Random Topics:
1st ConditionalNarrative Tenses & ConditionalsPersuasive TextFormal & Informal WordsPresent Simple & Present Progressive TenseAdverbPresent and Future TensesPrepositions of Time & PlacePast Tense vs Future TenseGoing To Be and WillOther quiz:
Vocabulary › Viewbombard (someone) with something
A. barrage
B. aversion
C. elation
D. discern
Grammar › View
He was playing very softly ________ he ________ disturb anyone.
A. in order that / couldn’t
B. so that / can’t
C. so that / could
D. so/ can
Grammar › ViewUnscramble the sentence:
twelve/ It’s/ o’clock/.
A. twelve o’clock It’s.
B. It’s twelve o’clock.
C. It’s o’clock twelve.
Subject Verb Agreement › View
Gina’s family _______ huge feet and, therefore, trouble finding shoes.
A. have
B. has
