【题目】When he ______ the bill in the restaurant, he suddenly realized that he had left his wallet in the car.
A.paidB.would be paying
C.was to payD.had paid
在线课程【答案】C
【解析】
本题考查时态。 句意：当他在餐馆要付账时，他突然意识到他把钱包忘在车上了。根据句意和he suddenly realized that he had left his wallet in the car可知，他过去准备付钱，还没有付，将要付时，要用过去将来时。故选C。