A. has been forgotten B. had been forgotten C. has been left D. had been left
A. that B. what C. which D. when
A. disappear B. neglected C. thrown D. delivered
A. alone B. single C. lonely D. impatient
A. appointed B. rejected C. hesitated D. measured
A. led to B. brought about C. broke off D. resulted from
A. was B. should C. were D. am