[ 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

Random Topics:
Commas and Subordinating ConjunctionsPresent/Past/Past ParticpleElectricity VocabularyPast Continuous TenseGrammar- Later/LatterPresent Simple QuestionsGerund vs Infinitive-ing &-ed AdjectivesPresent Tenses and ConnectorsModals in the PastOther quiz:
Subject Verb Agreement - Indefinite Pronouns › ViewNobody was present,______?
A. wasn’t they
B. wasn’t him
C. weren’t they
D. were they
Future Tenses › View
It’s hot in here. ___ I (open) the window?
A. Do I open
B. Am I going to open
C. Am I opening
D. Shall I open?
Vocabulary › Viewhesitating
A. signaled, beckoned, or called
B. in a halting or pausing way; acting with reluctance or uncertainty
C. weak; having little energy
D. completely; totally
Grammar › View
There are _____________ cars on the street today! There’s a horrible traffic jam!
A. too
B. too much
C. too many
D. enough
