[ Tenses ]
Complete the sentence to focus on the duration of the activity before the past event: He was tired because he _____ the entire house by himself.
A. cleaned
B. had cleaned
C. had been cleaning
D. was cleaning
Random Topics:
during, for, whileComperative and SuperlativeUnless If First ConditionalHave toTravel VocabularyGrammar and EssayTo Infinitive or Bare InfinitivePresent, Past and Future TenseAsking and Giving OpinionGoing To Be and WillOther quiz:
Grammar › ViewI ___ work in a bank, but now I’m working as a manager.
A. used to
B. got used to
C. was used to
Modals › View
A: John passed his exam with a distinction.
B: _______.
A. He must have studied very hard
B. He was too lazy to succeed
C. He needs studying harder
D. He can’t have studied very hard
Gerund or To Infinitive › ViewI always eat breakfast before ________ to school.
A. Going
B. To go
C. Go
D. Goes
Subject Verb Agreement › View
The build-up of gases in the air from burning large tracts of forest ______ to global warming.
A. contributes
B. contribute