两个英语问题，解答下

1、他的电话号码是218-2518吗？（翻译）

2、找出句子中的错误，并改正

This’s a pen and that’s a ruler

1、他的电话号码是218-2518吗？（翻译）

Is his phone number 218-2518?

2、找出句子中的错误，并改正

This’s a pen and that’s a ruler

This is 不能缩定为This's应改为：

This is a pen and that’s a ruler

1、他的电话号码是218-2518吗？（翻译）

Is his telephone number 218-2518?

2、找出句子中的错误，并改正

This’s a pen and that’s a ruler

This is a pen and that is a ruler.

Is his telephone number 218-2518?

This's a pen and that's an ruler

1.is his phone number 218-2518?

2.that's改为that is

1,His number is 218-2518

2,我觉得没错。

2、This a pen and that's a ruler.

1、Is his phone number 218-2518?

Is his telephone number is 218-2518?

this is 不能简写，必须分开