[ Grammar ]
From the simplest single-cell organism floating in prehistoric oceans _____________ all forms of life now inhabiting the earth.
A. Evolved
B. Had evolved
C. Evolve
D. Evolving
Random Topics:
Who vs WhomAbstract NounsGerundsPast Simple, Past Continuous, Past Perfect, Past Perfect ContinuousCompound and Complex, ConditionalsGerund and InfinitivesVOCAB & GRAMMARGerund and To InfinitivePassive Voice of TensesNumbersOther quiz:
Modals › ViewAll passengers ……… remain in their seats
A. Have to
B. Can
Present Perfect Tense › View
…. they …. their lunch?
A. Have — finish
B. Have — finishing
C. Have — finished
D. Have — finishes
Vocabulary › ViewHe knew that his final exam would require countless hours of _______ study.
A. bystander
B. distraught
C. endeavor
D. irate
E. laborious
Passive Voices › View
The fish are cooked by a professional chef.
A. TRUE
B. FALSE