---Wouldyouhavecalledheruphaditbeenpossible？---Yes，butIbusydoingmyhomework．（）A.wasB.wereC.hadbeenD.wouldbe

Question

---Would you have called her up had it been possible？
---Yes，but I      busy doing my homework．（　　）

A. was

B. were

C. had been

D. would be

Answer 1

答案是A．考查时态．因为问句是与过去事实相反的虚拟语气：Would you have called her up had it been possible？=If it had been possible，would you have called her up？； but后面是指过去当时的真实情况，所以用一般过去时，故答案是A．