[ Modals ]
A: The Great Wall of China took around 2500 years to build. B: Thousands of people ______ in the construction. A: Yes indeed millions.
A. must have worked
B. might have worked
C. mustn’t have worked
D. cant have worked

Random Topics:
Past Simple Negative & QuestionsGrammar - used toVocabulary, Adjective & PrepositionPresent Continuous for FutureSimple Present Continuous TenseRelative - ConditionalFormal & Informal WordsModals AuxiliaryZero and First ConditionalsSentence Structure and Grammar RulesOther quiz:
Tag Questions › ViewThe airline agent was nice, wasn’t she?
A. Yes, she was.
B. No, she was.
Articles › View
………. fog was so thick that we couldn’t see ………. side of ………. street.
A. The/ a/ the
B. The/ the/ the
C. x/ the/ the
D. The/ the/ x
Grammar and Vocabulary › View_____ James drive a car?
A. Do
B. Are
C. Can
Grammar › View
She went to see a doctor about the pain in the lumbar area of her __________.
A. calf
B. physiotherapist
C. push-ups
D. spine
