单项选择题
The doctor was reading a test report when the patient （） in by a nurse.
A. was shown B. had shown C. showed D. shown
单项选择题 It was said that the new car （） to the institute as a gift by a businessman.
单项选择题 Though it began raining, the peasants （） rice.
单项选择题 What the man said at the meeting made us all （）
