____ is clear ____ the Diaoyu islands have been China's inherent territory (固有领土)both from historical and legal aspects since ancient times.
It was with these feelings _______ I began the creation of a human being.
Most animals and plants are sensitive _______ sudden changes in temperature.
Water, _______ seems so simple and common, is what makes life possible.
You _______ not drive so fast. There is plenty of time.
I will never forget how happy I was when I _______ China again. A. set feet in B. set foot in C. put foot in D put feet in