[ Vocabulary ]
orbit
A. real or imaginary line through the center of an object
B. the curved path something in space takes around another object in space
C. the surface of the land and its features
D. an organization in the United States that directs space travel and research

Random Topics:
Linking Words & PhrasesAlthough, Though, In spite of, DespiteModals and Adjectives (ed-ing)Simple Present and Present Continuous TensesContinuous TensesQuantifiers & Modals of ObligationAction, Helping & Linking VerbsComparatives, Superlatives & EquativesModal Verbs and ConjuctionsGerund or InfinitiveOther quiz:
Grammar › ViewPeter would have crossed the border if he ___________ his passport.
A. didn’t forget
B. hadn’t forgotten
C. wouldn’t forget
D. wouldn’t have forgotten
Grammar › View
Klaus gave his teacher __________ apple.
A. the
B. a
C. an
D. –
Grammar › ViewYou and I need to help _________to complete the project.
A. each other
B. one another
Grammar and Vocabulary › View
Which verb best fits the sentence?
Yesterday she _____ to her friend on the phone.
_
A. will talk
B. talk
C. talked
