根据汉语意思，完成下列句子。

1、我和玛利亚是好朋友,我们经常互相帮助.

Maria And I are good friends. We often                                .

2、你明天有空吗?

        you          tomorrow?

3、请叫他给我回电话.

Please ask him to                                .

4、你想和我一起去购物吗?

Would you like to                     with me?

检斤是针对按重量供货或以重量为计量单位的货品进行的检验方法，即按重量验收。通常所说的货品重量不一定是指净重。