[ Grammar ]
Climate change is a worldwide problem that _____ to global warming.
A. lead
B. leads
C. led
D. leading

Random Topics:
Grammar - TOEICActive vs. Passive VoicePrepositionsContractions and ConjunctionsContrast Linking WordsGrammar & VocabDegrees of ComparisonModal, Causative Verb & Elliptical StructureMust or Mus notGrammar - QuantiflierOther quiz:
Modals › ViewThere is a storm coming. It ________ rain tomorrow.
A. won’t
B. ought to
C. might
D. should not
Verb Tenses › View
She _____ to the store before it started raining.
A. goes
B. had gone
C. is going
D. was going
Vocabulary and Grammar › ViewSandy is the prettiest girl in the class.
A. TRUE
B. FALSE
Tenses › View
There is a trend that recently more students _________ in internships to obtain better jobs.
A. were participated
B. will be participated
C. participates
D. have been participating
