Sam _____ some knowledge of the computer just by watching others working on it.

  A. brought up     B. looked up      C. picked up      D. set up

 -----Have you been wasting time on computer games again?

----- _______. I’ve been studying a lot and I need a break.

A. No way   B. Not really  C. I don’t agree   D. I couldn’t agree more

 When I got on the bus, I_____ I had left my wallet at home.          

A. was realizing              B. realized              C. have realized             D. would realize

 Don’t leave her_____ outside in the rain.

A. wait      B. having waited    C. being waited    D. waiting

 As a child , Jack studied in a village school ,_____ is named after his grandfather.

A. which        B. where       C. what      D. that

 By the time Jack returned home from England, his son_____ from college.

A. graduated          B. has graduated

C. had been           D. had graduated

 The storm left, _______ a lot of damage to this area.

   A. caused     B. to have caused    C. to cause    D. having caused

 She brought with her three friends, none of            I had ever met before.

A. them                   B. who       C. whom                      D. these

 Mike didn’t play football yesterday because he had_____ his leg.

   A. damaged      B. hurt     C. hit     D. struck

 I like getting up very early in summer. The morning air is so good _________.     

A. to be breathed             B. to breathe   C. breathing    D.being breathed