出现心理闭锁后，任其发展下去，会出现的危害有（    ）

①是青春期正常心理反应                 ②会影响与同学、朋友的正常相处和交往

③会使心理上产生不同程度的孤独          ④会形成有缺陷的人格

A．①③④

B．②③④

C．①③④

D．①②④

— Why didn't you tell me the truth that day?

— I ________, but you ________ for Shanghai when I went to see you. [      ]

A. did; would leave  

B. would; had been away

C. would have; had left  

D. had; were away