Topics: Tenses and Pronouns
Scientists believe that they _____ (travel) to the space one day.
A. travel
B. will travel
C. traveled
D. has traveled
Select your answer:

Random Topics:
Grammar: Parts and PunctuationHomophonesModal Verb, Passive VoiceQuestion tag and + - AgreementTOEFLIndefinite ArticleDegrees of ComparisonCompound Words and SentencesTOEIC Grammar and Vocabulary ReviewVerb Tenses and SubordinatesOther quiz:
Types of Simple Sentences › ViewGet up out of that bed immediately.
A. declarative
B. interrogative
C. imperative
D. exclamatory
Vocabulary › View
Psycic, mystic
A. Soothsayer
B. Flamboyant
C. Clairboyant
D. Choleric
