[ Tenses ]
“Could you turn off the stove? The potatoes ______ for at least thirty minutes.”
A. are boiling
B. were boiling
C. have been boiling
D. boiled

Random Topics:
Verbs: Action, Linking, and HelpingTenses and Passive VoiceAdverbs of Time and PlaceAdverbial PhrasesPassive Voice & TensesCorrelative conjunctionsAdjectives and PronounsVerb TensesAdverb Clauses of TimeComparatives, Superlatives & EquativesOther quiz:
Nouns › ViewOne who operates on sick people is a ________
A. nurse
B. surgeon
C. physician
D. dentist
Grammar › View
No other metal is as expensive as gold. (Transform the given sentence into superlative)
A. No other metal except gold is expensive.
B. Gold is expensive of all the metals.
C. Isnt gold the most expensive of all metals.
D. Gold is the most expensive of all metals.
Phrasal Verbs › ViewThe job offer was too good for him to turn_______.
A. down
B. out
C. off
D. away
Conditional Types › View
I would __________ a millionaire now if I took that job
A. be
B. been
C. being
D. had been