请将下列陈述句改成一般疑问句. . that‘s your watch. that’s his shirt.

问题描述:

请将下列陈述句改成一般疑问句. . that‘s your watch. that’s his shirt.
this is his coat(改成一般疑问句)

Is that your watch?
Is that his shirt?this is his coat.(改成一般疑问句)