[ Vocabulary and Grammar ]
Astronomers haven’t _______ signs of life in space.
A. see
B. saw
C. seen
Select your answer:
Random Topics:
Modal Verbs for PossibilityConditional SentencePhrasesFuture Perfect TenseFirst Conditional & Future TensesModal Verbs in First ConditionalPresent Simple VS ContinuousPast simple regular verbsRelative & Interrogative PronounsGrammar: wishes and regretsOther quiz:
Vocabulary › View……………….. wisdom says that most people will get married and have children.
A. Conservation
B. Conventional
C. Conventing
Some vs. Any › View
Jose won’t give me … help.
a. some
b. any