[ Present Tenses ]
A scientist ………already (discover) ……….a new species of jellyfish.
A. have, discovered
B. has, discovered
C. does, discovered
D. discovering

Random Topics:
and, so, but, becauseModal and Modal PerfectVerbsVocabulary and Modal VerbsSimple Present Tense vs Present Continuous TensePresent Tense vs Present ContinuousSubjective and Objective PronounFrequencyPast Continuous vs Past SimpleCompliment, Congratulation, and HopeOther quiz:
Simple Tenses › ViewWhich verb form is correct in Simple Past Tense? “He ___ the door and left.”
A. opens
B. opened
C. is opening
D. will open
Grammar › View
Can we _________________ the instructions again, please?
A. run through
B. fall for
C. go by
D. get by
Grammar › ViewOther jazz musicians praised the album’s ____________.
A. Strikingly original solos
B. Strikingly-original solos
Modals, Conditionals, and Clauses- Defining, Non-defining › View
While preparing for a bike ride, Emma notes, “You need to to wear a helmet for safety.” Which option correctly corrects the sentence?
A. need to to wear
B. need wear
C. need to wear
D. need wearing
