We _______ at the house as we _______ of buying it.

A．looked; were thinking

B．looked; had thought

C．were looking; thought

D．were looking; were thinking

功血行诊断性刮宫时，为了确定排卵或黄体功能，应在______刮宫；如怀疑子宫内膜脱落不全应在______刮宫；不规则流血者______刮宫。