If I have some questions, can you help me?1、She is ( ) this year.A、seventy-years-old B、seven years old C、seventy-year-old D、seventy year old2、Then he puts his hands ( ) his pockets.A、into B、in C、to D、at

If I have some questions, can you help me?1、She is ( ) this year.A、seventy-years-old B、seven years old C、seventy-year-old D、seventy year old2、Then he puts his hands ( ) his pockets.A、into B、in C、to D、at
If I have some questions, can you help me?
1、She is ( ) this year.
A、seventy-years-old B、seven years old C、seventy-year-old D、seventy year old
2、Then he puts his hands ( ) his pockets.
A、into B、in C、to D、at

If I have some questions, can you help me?1、She is ( ) this year.A、seventy-years-old B、seven years old C、seventy-year-old D、seventy year old2、Then he puts his hands ( ) his pockets.A、into B、in C、to D、at
1:B
2:B
都是固定用法的短语.

b
b

1.B
2.B

???是吗？
我觉得是
B
A
也.............