i am swimming at the pool 为什么不是in the pool
i am swimming at the pool 为什么不是in the pool
The boy is swimming at the pool.为什么是at the pool?用in the pool
i am swimming at the pool对 am swimming 提问
at the swimming pool和in the swimming pool
I am swimming in the swimming pool改为一般疑问句
swimming (at)还是(in) the swimming pool
In the second photo.I am swimming at the pool with my friend
in the pool&at the pool
in the pool和at the pool
连词组句 he,is,who,for 和am,i,swimming,pool,at.the,the,second,in,
I am swimming in the swimming pool对画线部分提问
am swimming (at the pool).对括号里的提问