The little girl is walking along the beach, happy and joyful, ________ bending down to pick up a beautiful seashell.

Young people spend most of their time _________, for they don’t want to stay at home all day.

 I won’t buy the house, which was too expensive and too big. ______, I’d grown fond of our little rented house.

 ----Volunteering is becoming ______ popular in China. ---- Yeah. People are now aware that helping others is helping themselves.

——It will be terrible to see the nuclear war happen. ——That’s right. Nuclear science should be developed to benefit the people   _____   harm them.