下列表示重量单位的是______.

His sister___________ her hometown for two years. She’ll return next year.

Dad, _____ is my friend , Xiao Hua. –Hello, Xiao Hua.

Billy: I’ve been fixing the computer for over three hours, but it still doesn’t work. Nana: Why don’t you take a rest and try ? Maybe you’ll do better then.

My best friend often tells me some jokes to make me