[ Future Tenses ]
People ______holidays in space in the 22nd century.
A. will have spent
B. will be spending
C. will spend
D. will have been spending

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Grammar - PunctuationGerund or to InfinitivePresent Progressive TenseSynonymsIdiom and TensesPhrasal Verb and ModalTravel VocabularyPreposition and Preposition PhraseModal Verb Gerund or To InfinitiveModal Verbs of Certainty and PossibilityOther quiz:
Grammar › View‘Where are you going?’ She asked me …… .
A. if I was going
B. where I am going
C. where I was going
Preposition on Time › View
I have breakfast ___ half past seven.
A. at
B. on
C. in
D. X