1. What ... you ... when the accident occurred ? A) have... done B) have...been doing C) were ..doing D)was...doing 2. Harry Potter ... by the British writer . A) had written B) have been written C) wrote D) was written 3. Lynda ... from university two years ago. A) had graduated B) was graduating C) graduated D) graduates 4. We can’t use the fitness centre yet because it... A) is still building B) is still being built C) is still built D) builds