let's cut the birthday cake _a bread knife.A by B with C over D onwe are doing much better_english_our teachers' helpA in,at B at ,in C in ,with D with ,with

let's cut the birthday cake _a bread knife.A by B with C over D onwe are doing much better_english_our teachers' helpA in,at B at ,in C in ,with D with ,with
let's cut the birthday cake _a bread knife.A by B with C over D on
we are doing much better_english_our teachers' help
A in,at B at ,in C in ,with D with ,with

let's cut the birthday cake _a bread knife.A by B with C over D onwe are doing much better_english_our teachers' helpA in,at B at ,in C in ,with D with ,with
B
C

A 用刀切蛋糕
C 在老师的帮助下，我们英语学得更好。