Unit12 Life is full of the unexpected 一、单项选择(共20小题;共20分) 1.The girl sitting next to me on the plane was very nervous, for she before.A. didnt flyB. hasnt flownC. hadnt flownD. wasnt flying 2.The meeting by the time I got there yesterday.A. was onB. has been onC. had begunD. has begun 3.- Why did you throw away that pair of sports