[ Vocabulary and Grammar ]
Aircraft flying in …….. arcs create microgravity for tests and simulations that last 20-25seconds.
A. circular
B. parabolic
C. straight
D. oval
Select your answer:
Random Topics:
ConditionalGrammar - FragmentsReported Speech and TenseKinds of SentencesArticleGrammar and Passive VoiceMix-TensesVerb Tenses and SubordinatesPast Simple or Past ContinuousAdverbOther quiz:
Grammar › ViewJenny wasn’t able to come to meeting yesterday . She………. take her mother to the dentist.
A. must to
B. had to
C. could
D. would
Grammar › View
Simple Past
He _ _ _ to confess to his crush yesterday.
A. Trying
B. Trys
C. Try
D. Tried