[ Grammar ]
The increase in ………………………. gases in the Earth’s atmosphere worries many scientists since it contributes to climate change.
A. global
B. greenhouse
C. labour
D. inflation

Random Topics:
Conditional Sentence Type 1Present or Past TensesGerunds & Infinitives + VocabularySubordinating ConjunctionsPrepositional PhrasesPrepositions after Verbs and AdjectiveGrammar - help/have/let/makePast or Present Verb TenseFirst ConditionalSentence TransformationOther quiz:
Tenses › ViewShe usually…………………(wear) uniform every Monday
A. wears
B. wear
C. wore
D. wearing
Tenses › View
The sun……… in the East.
A. is rising
B. rose
C. has risen
D. rises
Modal Verbs › ViewExcuse me, _____ you please pass the salt?
A. Must
B. Could
C. Will
D. May
Adverbs of Time and Place › View
What adverb is used in the sentence “She arrived just in time for the party.”?
A. Quickly
B. Just
C. Yesterday
D. Always
