Someone paid the bill.
A. Who did pay the bill?
B. Who paid the bill?

Random Topics:
Wish clauseNounPoetryRelative Clauses and Past PerfectGrammar AssessmentQuantifiers and AdjectivesFirst & Second ConditionalGrammar ModalsClause Markers TOEFL GrammarHave vs. HasOther quiz:
Sentence Transformation › View“I can’t explain this rule to you”, said my classmate to me.
A. My classmate told me he can’t explain that rule to me.
B. My classmate told me he couldn’t explain that rule to me.
C. My classmate told me he couldn’t explain that rule to you.
D. My classmate said me he couldn’t explain that rule to me.
Present Simple Tense › View
Using adverbs of frequency with present simple tense: Complete the sentence with the correct adverb of frequency: He ___________ goes to the gym.
A. sometimes
B. rarely
C. always
D. never
Tenses › ViewWhile Hoa …………… the piano, her mother was doing the washing-up.
A. were playing
B. was playing
C. play
D. played
Gerunds and Infinitives › View
One negative influence is (argue) ______. People who argue are more likely to get colds than those who do not.
A. argue
B. to argue
C. arguing
