Topics: Adverbs
Toxic gasses are being released into the air ____________ petrol cars.
A. because
B. because of
Select your answer:

Random Topics:
Simple vs Present Continuous TensesWill and Going toThe Simple Present TenseGrammar - Present and Past PassiveSubjunctiveCountable and UncountableQuantifiers MixModal PossibilitiesGrammar Double Object VerbsWish / If only ( Present)Other quiz:
Grammar › ViewI taught my dog to — the paper at my feet
A. lie
B. lye
C. lay
D. laye
Simple Past Tense › View
We ____________ (eat) at the restaurant two days ago.
A. ate
B. eaten
C. eated
D. eats
