[ Grammar and Vocabulary ]
The __________ of outer space is a very expensive activity.
A. weightlessness
B. colony
C. exploration
Select your answer:
Random Topics:
PrepositionsPreference & Future TenseProgressive TensePast Perfect Simple & ContinuousModal Verbs and Gender NounsFuture - will / going to / present continuousPhrase and ClauseSubject and Verb AgreementIn/On/At + TimeIdiomsOther quiz:
Complex Prepositions › ViewTrains were invented _____ the nineteen century.
A. At
B. Since
C. In
Reported Speech › View
He said that Linda and John _______ married _______.
A. were getting / tomorrow
B. were getting / the next day
C. are getting / the next day
D. will getting / the day after