[ Verb Tenses ]
By 2025, scientists ______ (discover) more about Mars.
A. will have discovered
B. will have been discovering

Random Topics:
PronounPunctuationsPossessive Pronouns and QuantifiersModal RequestsGrammar Comma UsagePassive Voice & TensesVerb IdentificationPrepositions - ConjunctionsAdjective vs AdverbVerbal PhrasesOther quiz:
Grammar › ViewCHOOSE THE CORRECT SPELLING
A. HIBISCUS
B. HIBISKUS
C. HAIBISKUS
D. HAIBISCUS
Relative Clauses Pronouns › View
That man was a total ________________ and I wasn’t going to speak to him.
A. comment
B. common
C. pressure
D. situation
E. stranger
Tenses › ViewI ______ my leg while skiing in France last winter.
A. broke
B. am breaking
C. break
D. have broken
Grammar › View
Everyone wants a cute, funny kitten, but adult cats often languish in shelters.
Languish means…
___
A. lacking vitality and growing weak
B. continuing with great force or intensity
