morph|morphed|morphing

随着时间推移，蝌蚪逐渐变形为青蛙。

Over time, the tadpole will ___morph into a frog.

视频特效将小猫逐渐变形为一只老虎。

The video effects gradually ___morphed the kitten into a tiger.

随着时间推移，他的兴趣从音乐逐渐转变为摄影。

His interest is ___morphing from music to photography over time.