There are some dogs, _________ in that village.
A：some chicken and some sheep
B：some chickens and some sheep
C：some chickens and some sheeps
D：some chicken and some sheeps
根据拼音写出词语。
quàn gào
jiē shi
xiū bǔ
____
“连那最末次的相见也已经隔了七八年，其中似乎确凿只有一些野草；但那时却是我的乐园。”
一块△ABC余料，已知AB=8cm，BC=15cm，AC=17cm，现将余料裁剪成一个圆形材料，则该圆的最大面积是____ ．
____you want to ____weight, you should ____ ____ often.
