C. practice: The word "practice" in this context refers to a habitual or customary way of doing something, which is suitable when discussing the act of dumping waste. 
C. craft: "Craft" refers to a skill or art, especially one involving manual dexterity. Weaving is a craft, a skill of interlacing threads.








 

1. People should avoid the ______of dumping waste into the sea.

cuisine: ẩm thực
craft: nghề thủ công
practice: thói quen, tập tục
mean: keo kiệt, bủn xỉn
Đáp án: C. practice

2. They learned the _______of weaving.

waiter: người phục vụ
igloo: nhà tuyết
craft: nghề thủ công
tribe: bộ lạc
Đáp án: C. craft