[ 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
Select your answer:

Random Topics:
Verbs + Gerund or InfinitivePresent ContinuousAdverb of Frequency and Past Continuous TensePresent/Future/Past Simple/Present PerfectPassive Modals, Impersonal PassiveConditional Sentence Type 0-3Must / must notPresent Simple VS ContinuousPresent Continuous, Present Perfect and Used toModal Verbs in First ConditionalOther quiz:
Grammar › ViewLina : Did the boys study after class?
Rudi : No.
Lina : What did they do?
Rudi : They…..football.
A. Play
B. Plays
C. Played
D. Will play
Grammar & Vocabulary › View
Plastic bags take hundreds of years to ______, causing long-term harm to the environment.
A. display
B. decompose
C. store
D. introduce
