It was ________ surprise that my first teacher, already 90, was still living and in ________ good health.
Xiao Li was about to cheat in the exam ________ the teacher came up, smiling to him.
You can find me easily, for there is only one house _______ roof is flat.
I shall never forget the days ______ I stayed in Africa, ________ has brought me a lot of advantages.
Never before in my life ________such a beautiful girl with so many high qualities.
—— Don’t smoke today, honey, it’s three months since you smoked.—— OK, I ______.