In the north people sometimes tie straw ropes (草绳) round the trees in winter to ______ them from the cold.

The camera was _____ by his son and he had to have it repaired.

The police set out in search of other children who might ______ Guizhou’s dustbins after 5 deaths for warmth. 

I __________ Wang Ping again and flew after him.

Don’t mention that at the beginning of the story, or it may ______ the shocking ending.