23. Each member country of WTO must ______ its laws and regulations and compete on the principle of fairness and co-operation.
I met Jennifer in the street _____ and she told me she would go to study abroad next month.
What we teach in the classroom should ______ students’ need in their studies..
. Whenever she is in trouble, her parents always come to her_____, which makes her thankful.
I had wanted to clean out the basement ____, but unfortunately he came back before I did it.
_____ crying sadly, he raised his head and let tears stream down his face on purpose.