1. I think it's _________(use) to talk with him. It's difficult to change his mind.
2. The terrible snowstorm kept them from _________(ski) last week.
3. My uncle will come back from London. I'm waiting for his _________(arrive).
4. _________(wolf ) eat smaller animals when they are hungry.
5. _________(luck), he was hurt badly.
6. His grandpa was lucky enough to stay _________(live) during the earthquake.
7. Lushan is so beautiful that he wants to go there for the _________ (two) time.
8. We should encourage people _________ (not cut) trees any more.
9. I _________ (drive) to Beijing when my car broke down.
10. The young trees _________ (die) soon if you don't water them in time.

1. I think it's __________ (use) to talk with him. It's difficult to change his mind. ?
2. Did you have a nice time __________ (ski) last week? ?
3. Our teachers told us that the earth __________ (move) around the sun. ?
4. __________ (wolf) eat smaller animals when they are hungry. ?
5. __________ (luck), he didn't hurt badly. ?
6. His grandpa is ill. He was even __________ (ill) this morning. ?
7. When I saw the squirrels, I became __________ (interest) in them. ?
8. Can you teach me how __________ (dance)? ?
9. I __________ (drive) to Beijing when my car broke down. ?
10. Don't leave the baby by __________ (he). It's not safe to leave him alone at home.

1. I think it’s ______( use ) to talk with him. It’s difficult to change his mind.
2. The terrible snowstorm kept them from______( ski ) last week.
3. My uncle will come back from London. I’m waiting for his ______ ( arrive ).
4. ______ ( wolf ) eat smaller animals when they are hungry.
5. ______（luck ), he was hurt badly.
6. His grandpa was lucky enough to stay ______( live ) during the earthquake.
7. Lushan is so beautiful that he wants to go there for the ______ ( two ) time.
8. We should encourage people ______ ( not cut ) trees any more.
9. I ______( drive ) to Beijing when my car broke down.
10.The young trees ______( die ) soon if you don’t water them in time.