[ Modals ]
I knocked on their door, but no one answered. They _____ early.
A. must leave
B. must have left
Select your answer:
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Other quiz:
Grammar › ViewThe mail is _______________ by truck and by plane.
A. transported
B. folded
C. directed
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_______ is that man over there? That’s my uncle.
A. Why
B. Where
C. When
D. Who
How to use : Read the question carefully, then select one of the answers button.