Mum,my little sister is crying all the time. ——Mary,be _________!She feels sick.You should take good care of her.

He can’t speak English as ________ as me, but he is _______ at Chinese than me.

My idea ________ to be true.

There are many volunteers _________ are helping the children in Sichuan.

Tom, could you help with my English?— Sure. When shall we start?