初中英语求答根据句意用括号里单词的适当形式填空。 1:Three pieces of bread____ (be) on

初中英语求答
根据句意用括号里单词的适当形式填空。 1:Three pieces of bread____ (be) on the table . 2: We can give some flowers to our mothers on____ (mother) Day. 3: Let's take ____(turn) to drive the car . 4: Nancy pours hot water into the glass ____(careful). 请写出相关语法知识点或短语，谢谢。