单项选择题
A. Itis expensive． B. It is fashionable． C. It isa good bargain． D. It is the best choice．
A. Hespent all day emailing． B. He left his email page open． C. Heforgot to close the door． D. He quarreled with his boss．
A. Shedid not hear what was shocking． B. Sheis not sure how to solve the mystery． C. Shewas not able to manage the project well． D. Shefeels surprised how she could finish so early．