The officer gave orders that anyone _____ a gun should be reported to the police station.
A．saw take B．seen taking C．seeing take D．seen taken
----- You seem in low spirits. Anything wrong?
----- I ______ in the important exam. I let my parents down.
A．fail B．failed C．has failed D．had failed
A wallet has been found and can be ______ the manager’s office.
A．claimed B．announced C．declared D．cheered
----- How did you know the surprising news?
----- I happened _______ the event then.
A．to cover B．to be covering C．covering D．to have covered
If the wound ______ become infected, do not hesitate to call me.
A．shall B．must C．should D．would
With two sons ______ in Afghanistan, John and Susie Mayes are working extra hard this year to make sure their grandchildren have a great Christmas.
A．to serve B．serving C．having served D．served
