The volcano eruptions are found ________around the Pacific ocean.

There is no doubt that I'm trying to do what is best, but ________ I have got to consider the cost.

His report was so exciting that it was      interrupted by applause(鼓掌).

When talking about the Mid-autumn Festival, we ______ think of mooncakes and family reunion.

Plants need water and sunlight to grow well. _____, a healthy body requires a balanced diet.