单项选择题
No sooner （） the news than they rushed out into the street.
A. they heard B. they had hear C. did they hear D. had they heard
单项选择题 Which of these trains is the one （）goes to Nanjing
单项选择题 This book will show you （） can be used in other contexts.
单项选择题 One of the professor's greatest attributes is （）
