[ Grammar ]
NASA is planning new missions to places where no one———- before
A. was gone
B. has been
C. will be gone
D. have gone

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Vocabulary and Sentence StructureSecond and Third ConditionalSubordinating and Coordinating ConjunctionsFragment, Comma Splice and Run -on SentenceIN, ON & ATZero Conditional SentenceCoordinating ConjunctionsPrepositions & Modal VerbsNoun, Verb, AdjectiveCoherent Sentence with Correct Grammar StructureOther quiz:
Tenses › ViewWhich sentence uses the present perfect correctly for an ongoing situation?
A. “I have seen John this morning.”
B. “I saw John yesterday.”
C. “I have been living here since 2010.”
D. “I have lived here yesterday.”
Grammar › View
When he ……. (lie) down, he …….. (find) his lost wallet.
A. lay, finded
B. lied, found
C. lain, found
D. lay, found