英语 把句子变成一般疑问句,并作肯定或否定
问题描述：
英语 把句子变成一般疑问句,并作肯定或否定
1.he is mr black.
2.i am in grade 1.
3.you are workers.
4.this is my book.
5.that is an english dictionary.
答
is he mr black?yes,he is
am i in grade yes,i am
are you workers?yes,i am
is this my book?yes,it is
is that an english dictionary?yes,it is