[ Vocabulary and Grammar ]
This happens when cold and warm air make electricity.
A. lightning
B. sunsets
C. northern lights
D. constellations

Random Topics:
Linking Words and ConjunctionCountable and UncountableModal Verbs - ObligationUncountable NounsUnreal Uses of Past TensesVerb + PrepositionMix-TensesGrammar Past and Future TenseGrammar: Defining Relative Clauses1st ConditionalOther quiz:
Grammar › ViewBy 2070 many species____
A. will be disappearing
B. are going to disappear
C. will have disappear
D. disappear
Grammar › View
There was not ___________ cash left in my wallet..
A. few
B. little
C. many
D. much
Conjunctions › ViewIn spite of the fact that ____, he couldn’t get a job.
A. his qualifications
B. he had qualifications
C. having qualifications
D. qualifications
Modals of Obligation › View
You…. here if you don’t have a permission.
A. can’t enter
B. may enter
C. may not enter
D. should enter
