[ Grammar ]
If you want to be an astronaut, you need to experience microgravity on a _______ flights.
A. habitable
B. universal
C. parabolic
D. unhabitable
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Simple Present and Simple PastVerb Tenses and UsagePassive SentencesConditionals and Modals of Probability-ed/-ing AdjectivesModals for RecommendationsVerbs and Possessive AdjectiveAdjectives and comparisonsVocabulary and Sentence StructurePresent Simple and Past ContinuousOther quiz:
Subject Verb Agreement › ViewThe flowers in that garden _____ water.
A. need
B. needs
Vocabulary › View
puts information in order according to its level of importance
A. subordination
B. parallel
C. formal outline
D. speaking outline
Grammar › ViewDraw two oranges on____blackboard.
A. An
B. A
C. The
D. No answer
Modal Verbs › View
… I help you with your umbrella?
A. Must
B. Would
C. Can