25．Attempting to reach his home before the storm, ____.

A．John's bike broke down

B．the storm caught John

C．John had an accident on his bike

D．it happened that John's bike broke down

24．----Here we are. We've reached our hotel at last!

----I'm glad you said“at last”. We ____for at least half an hour.

A．have walked

B．have been walking

C．walked

D． had walked

23．The court hears about 120 cases a year; visitors are welcome to see a case ____.

A．argued

B．to be argued

C．to be arguing

D．being argued