– Why did they help Mrs Brown with her work?

– Because she was _____.

A．an old friend of them

B．the friend of them

C．on the their friend

D．a good friend of theirs

盆腔炎是以下除哪项以外的炎症

A．卵巢

B．输卵管

C．盆腔腹膜

D．卵巢周围结缔组织

E． * *