从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. The new technology, if to farming, will help increase the grain output.
A. applying B. to apply C. applied D. having applied
2. Tony found a better job in Beijing and in a middle school there now.
A. taught B. has taught C. is teaching D. will teach
3. —Thanks a million for your professional help!
A. Yes, with pleasure. B. No way!
C. Yes, that's it. D. No problem!
