78. Sir Arthur Conan Doyle ______.

A. is a detective in mystery stories    B. is Sherlock Holmes' assistant

C. is a soldier in the British army       D. writes famous mystery stories

79. Dr Watson watches Holmes with admiration because ______.

A. Holmes solves mysteries in a most surprising way

B. Watson is not very clever

C. people always come to Holmes for help

D. the story of the mystery is written up afterwards

80. The writer most probably created the character, Dr Watson, to ______.

A. give Holmes help when solving mysteries

B. show Holmes' careful observation

C. help readers pick up some clues about the mystery

D. get readers to see the mystery step by step

81. The first time they meet, ______.

A. Holmes explains how he knows Watson has been to Afghanistan

B. Holmes surprises Watson by telling that he has been to Afghanistan

C. Watson tells Holmes he has been to Afghanistan

D. Watson asks Holmes how he knows he has been to Afghanistan

82. In 'Observation Two', the underlined word sun burnt probably means ______.

A. caused by illness      B. made brown by sun

C. painted by make-up     D. given by his mother