【问】The swimming pool is 80 metres_B__and metres ___.B in length in width D in length wide D为什么不能选?两种表达方式都可以吧

swimming (at)还是(in) the swimming pool swimming pool in the swimming pool 翻译成汉语 --------- Mike like swimming at the pool? i am swimming at the pool He wants to swimming in the pool. The boy is swimming at the pool.为什么是at the pool?用in the pool I am swimming in the swimming pool改为一般疑问句 i am swimming at the pool对 am swimming 提问 at the swimming pool和in the swimming pool有何不同 要速度 Lily swims in the swimming pool对in the swimming pool提问 在游泳池里应该是in the swimming pool还是on the swimming pool Sometimes,I swim in the swimming pool.()(),I swim in the swimming pool.同义句转换 There is a 20-metre-long swimming pool there.The swimming pool is ()()() Splash!The boy_______(jump)into the swimming pool. The swimming pool is on the playground.有错吗? Jenny is swimming in the swimming pool 对划线部分提问 swimming划线 The dog is swimming at the pool ,对at the pool提问