91. Mark Twain is a famous _____.

            A. American writer                            B. American playwright

            C. English writer                                D. English playwright

92. He used _____ next to me in class.

A. to sit                       B. sit                           C. to sitting                 D. to sat

93. Are you looking for my sister? - She isn't at home now. She _____ to the library.

A. went                       B. goes                        C. has gone                 D. is going

94. While I was swimming yesterday afternoon, someone else _____ my clothes.

A. stealed                    B. was stealing           C. was stolen D. stole

95. Who _____ the bicycle?

A. invents                   B. was invented          C. invented                 D. did invented