The government has decided to give preference to those environmently-friendly business and companies in all aspects in _______ of sustainable development.

A healthy life is frequently thought to be _____ with the open countryside and home-grown food.

. --- This kind of food is said to contain poisonous chemicals. --- So why not _____ it?

Now the People’s Liberation Army is _______ very modern weapons, which no one dares to look down upon. 

---What’s the matter with you?---After the long walk, my legs ______ and I couldn’t go any further.