[ Grammar and Vocabulary ]
I doubt the problem of global warming … been solved fifty years from now.
A. had
B. would have
C. will have
Select your answer:

Random Topics:
Reported SpeechVocabulary, Grammar, SpellingVerb + PrepositionComparison & Modal Verbs in Passive VoiceStative Verbs and TensesModal Verbs and AdviceGrammar: was/wereModal Auxiliary VerbsAdverbs of DegreeGrammar - much, many, a lot ofOther quiz:
Subjunctive › View“You’re brilliant. I wish I could play the guitar like you.”
This means …
A. I’m sorry that I can’t play the guitar like you.
B. I can play the guitar as well as you.
C. I learned how to play the guitar.
Grammar › View
The children _____ when the clown tripped.
A. laughed
B. laughs
C. laughing
D. laugh
