—Volunteering is becoming increasingly popular in China. —Yeah, people are now ____that helping others is helping themselves.

Although I can walk about, there is still a _____ pain in my leg.

The　president　made　a＿＿speech　at　the　opening　ceremony　of　the　sports　meeting，which　encouraged　the　sportsmen　greatly．

We are proud of our hometown, which is      in coal and natural crystal（水晶石）.

It was a(n) _____situation, because the restaurant was too expensive for us but we didn't want to just leave.