My pain _____ obvious the moment I entered the office, for the first man I met asked pitifully “Are you feeling all right?” ( )
A. could be B. could have been C. must be D. must have been
My pain _____ obvious the moment I entered the office, for the first man I met asked pitifully “Are you feeling all right?” ( )
A. could be B. could have been C. must be D. must have been
D