Children's Day is coming ,but I 'm not sure what _____ (buy)

Children's Day is coming ,but I 'm not sure what _____ (buy) Mother's Day is coming ,but I'm not sure what () (buy) for m I'm not sure what I can buy for my mother.I'm not sure _____ -- I hear Tom is coming to China.--- Yes,but I'm not sure if I'm not sure what I can buy for my mother.（t同义句转换） I'm not s .She _____ know the answer,but I’m not sure. Tom _____ at hom ,but I'm not sure. ________Mother's Day is coming.I'm thinking about what i sho Tom is said____abroad,but I'm not sure what country he studi What are you doing,Jack?Father's Day is coming.I'm thinking coming,month,children's day,next,is Children ’s Day is not a uaual day to every children.What do