[ Tenses ]
. The earth (be)…. here for billions of years.
A. was
B. has be
C. have been
D. has been

Random Topics:
Adverb of Frequency and Tensesanother/the others/each other/one anotherGrammar, Literature, and VocabularyFuture PassiveGrammar - QuantiflierFuture Simple TenseComparatives or SuperlativesSo - Too - Either - NeitherSecond ConditionalGrammar and SyntaxOther quiz:
Compound Words and Sentences › ViewAll boats should have one ______ for every person or pet on board.
A. lifepriserver
B. lifepreserver
C. life preserver
D. life-preserver
Grammar › View
Which sentence is correct?
A. Where is the most closer subway station?
B. Where is the most closes subway station?
C. Where is the closest subway station?
Vocabulary › ViewA person who is _____ will find fault or have an opinion that something is wrong.
A. critical
B. appreciated
C. civilized
D. considerate
Grammar › View
Tom said everything_______ready when the match_______
A. will be/ starts
B. would be/ started
C. is / started
D. will be/ started
