11月16日是每年一度的国际宽容日，联合国教科文组织呼吁人们在相互理解和尊重的基础上建立宽容的生活方式。联合国教科文组织设立国际宽容日，呼吁人们宽容，是因为（ ）
①宽容是人际交往的基本原则之一
②宽容是打开人与人和解之门的钥匙
③宽容能使人际交往变得轻松，也会给自己带来快乐
④只有放弃自己的独立思考和主张，才能成就人生
| A．①②③ | B．①②④ | C．①③④ | D．②③④ |
If only you __________ him what I said! Everything would have been all right.
| A．didn't told | B．hadn't told |
| C．would not tell | D．would have not told |
We didn't know his telephone number, otherwise we _________ him.
| A．would have telephoned | B．must have telephoned |
| C．would telephone | D．had telephoned |
It was essential that the application forms ___________ back before the deadline .
| A．must be sent | B．would be sent |
| C．be sent | D．were sent |
_____________ cease（终止） advertising, prices would be significantly reduced.
| A．Were they to | B．Could they |
| C．If they | D．Would they |
Much labor would have been saved if the electronic computers_____________ before.
| A．had invented | B．were invented |
| C．should have been invented | D．had been invented |