[ Tenses ]
The greenhouse effect ____ rising temperatures today.
A. is causing
B. caused
C. causes
D. will cause

Random Topics:
Active and PassiveConjunctions, Interjections and Sentence TypePreposition of DirectionClauses and ConjunctionQuantifiers & Modals of ObligationFuture Perfect ContinuousFigurative Language VocabularySimple and Compound SentencesClauses and ConjunctionsSubject-Verb AgreementOther quiz:
Grammar › ViewIn 2006, Viet Nam made a deep impression ______ other countries in the region by successfully hosting the Southeast Asian Student Sport Festival.
A. with
B. for
C. in
D. on
Vocabulary & Phrasal Verb › View
In my opinion he … to you.
A. lay
B. lied
Prepositions › ViewHe was keen __ ___ proposing ideas about activities for the welcome event
A. on
B. for
C. about
D. to
E. of
Tenses › View
At 10 o’clock he _________(compose) in his music room.
A. composed
B. was composing
C. compose
D. were composing
