犬，3d前被撞伤，昨天发现左胸侧壁出现一肿胀物，并逐渐增大，周围界线明显，无热无痛，触诊有波动感，皮肤不紧张，该病最可能是（）

A.血肿

B.脓肿

C.疝

D.淋巴外渗

E.气肿

There, ____ Mrs. Tailor, stretching out to gather her precious eggs laid by her hen.

A．standing on a wooden box was

B．was standing on a wooden box

C．on a wooden box was standing

D．was on a wooden box standing