Yesterday, the students _______ the classroom after class.
A. clean
B. cleaned
C. cleaning
D. cleans

Random Topics:
Contrastive ConjunctionAlong & AgainstGrammar Present Perfect (ever never)Verb Tenses and Past ParticiplesConjunctionPresent/Past/Future Continuous TenseAdverbial Clause of Cause and EffectSubordination ConjunctionsCompound and Complex, ConditionalsTenses - Pasive VoiceOther quiz:
Tenses › ViewJenny went shopping after she _____________ (have) her money back.
A. have had
B. had had
C. has have
D. had have
Tenses › View
Which sentence is grammatically correct?
A. I wish I was taller.
B. I wish I were taller.
C. I wish I am taller.
D. I wish I had been taller.
Irregular Verbs › ViewHave you ______________ your lost dog yet?
A. find
B. finded
C. found
Conjunction › View
Luke is a contractor, _______ he knows the construction business.
A. Luke is a contractor, so he knows the construction business.
B. Luke is a contractor, nor he knows the construction business.
C. Luke is a contractor, or he knows the construction business.
D. Luke is a contractor, but he knows the construction business.
