[ 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:
Past Perfect or Past Perfect ContinuousReflexive Pronouns & Modal VerbsGrammar and PrepositionPrepotitionsAsking and Giving SuggestionSimple Past/Past ProgressivePronoun-Verb AgreementPast Perfect SimpleUsed toOther quiz:
Comparison and Modals › ViewSarah’s marathon time is 3 hours, and Emma’s marathon time is 3 hours and a half. Sarah is _____ Emma.
A. faster than
B. slower than
C. older than
D. shorter than
Tenses › View
We have been waiting for them.
A. Past Perfect
B. Present Perfect Continuous
C. Present Continuous
D. Past Continuous