第22题: [单项选择]After driving for thirty miles, she suddenly realized that she ______ in the wrong direction. A. was driving B. has been driving C. had been driving D. drove 参考答案:C 答案解析:本题测试过去完成进行时和时态一致。had been driving 表示从过去开始,到她意识到开错方向时一直在进行的动作。本句大意为:开了30英里后,她才突然意识到她的方向一直是错的。