1(that is ) 2(my) 3(a dictionary) it is 4(black)
1`(this is) 2(a eraser) and that is 3(a pencil) 4(in) the pencil case
1(spell) watch, 2(please) 3(yes) 4( w a t c h)
1(what is) 2(this ) 3(the) pencil case
yes 4(it is)
1(that is ) 2(my) 3(a dictionary) it is 4(black)
1`(this is) 2(a eraser) and that is 3(a pencil) 4(in) the pencil case
1(spell) watch, 2(please) 3(yes) 4( w a t c h)
1(what is) 2(this ) 3(the) pencil case
yes 4(it is)
3 dictionary
2 an eraser
3 ok
1 IS
3,去掉A
2,A改成AN
没错
1,去掉WHAT