摘要： had he set foot on his native land he felt comfortable. As the old saying goes, “East, west, home s the best. A. No sooner; when B. Hardly; than C. NO sooner; than D. Not only ; but also
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Only after he realized the significance of mastering two languages ______ English carefully.
A．did he set about learning B．did he set out learning
C．had he set about learning D．had he set out learning
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Only after he realized the significance of mastering two languages ______ English carefully.
| A．did he set about learning | B．did he set out learning |
| C．had he set about learning | D．had he set out learning |
Only after he realized the significance of mastering two languages ______ English carefully.
A. did he set about learning B. did he set out learning
C. had he set about learning D. had he set out learning
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