[ Modal Verbs ]
They ___ seen your message. Their phone was off the whole day.
A. might have
B. must have
C. can’t have
D. may not have
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Grammar › ViewCarmen and I ……… the lunch yet. So, we are very hungry now.
A. haven’t eat
B. haven’t eating
C. have eaten
D. haven’t eaten
Grammar › View
How old were you when you __________ primary school?
A. were starting
B. started