[ Tenses Usage ]
Solar energy _____ the dominant source of power within a decade.
A. becomes
B. will become
C. became
D. will have become
Random Topics:
Grammar and EssayNouns and QuantifiersPresent, Past and Future TensePunctuation and GrammarTag QuestionGrammar - Present PerfectModals of ObligationCountable - UncountableAlthough / DespiteSimple TensesOther quiz:
Modal Verbs › ViewIt’s 12 o’clock you ________ to be in bed!
A. should
B. are supposed
C. supposed
D. must
Passive Voice › View
Some people were laughing.
A. Active Voice
B. Passive Voice
Grammar › ViewLondon is a great city. _________ is my favorite city.
A. I
B. He
C. She
D. It
Grammar › View
You ______ be a good swimmer to join the rowing team, but you should know how to swim.
A. don’t has to
B. don’t have to
C. doesn’t has to
D. doesn’t have to