[ Present Perfect Tense ]
They ______________ the homework.
A. haven´t did
B. hasn´t did
C. haven´t done
D. hasn´t done

Random Topics:
Transitive and Intransitive VerbTenses, Tag Questions, Phrasal VerbsSo Such Enough TooShould, Should not haveInfinitive or GerundVocabularyModals and AdviceImperative SentencesWord Form & Verb TenseIndirect SpeechOther quiz:
Grammar › Viewmy younger sister has (105) colorful paper.
A. one hundred and five
B. one hundred and fifty
C. one hundred and fifteen
D. one hundred and thirteen
Past Tenses › View
I _______ from university in 2015.
A. graduated
B. was graduating
C. had graduated
D. had been graduating
Comparative Adverb › ViewThis restaurant is bad, but the restaurant we ate at last week was _____
A. Bad
B. The worst
C. Worse
Adverb › View
Which is a proper adverb?
A. Fast
B. Quick
C. Deftly
D. All of the above
