(2012·辽宁) Not until he retired from teaching three years ago __________ having a holiday abroad.
| A．he had considered |
| B．had he considered |
| C．he considered |
| D．did he consider |
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(2012·辽宁) Not until he retired from teaching three years ago __________ having a holiday abroad.
| A．he had considered |
| B．had he considered |
| C．he considered |
| D．did he consider |
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