A．The man should begin to study.
B．The man might have left it at school.
C．Jane could have taken it by mistake.
D．Jane has already returned it for him.
A．She didn't like the opening ceremony.
B．She didn't plan to go to the supermarket.
C．She didn't know the photo was sent online.
D．She didn't go early enough to get in.
A．He is too ill to go on working．
B．He doesn't want to trouble the woman．
C．He feels like taking a break.
D．He has already finished his report.