问题
have you been at this school –For three years．
A:How far
B:How long
C:How many times
D:When;
B:How long
C:How many times
D:When;
正确答案是：
同类题型
With economy getting worse，we have reached the point________we have to cut down our daily expenses.
The air in the countryside is , so many people from the city drive cars there on weekends.
He ________ some safety measures at the meeting for the 2010 Shanghai Expo.[ ]
Don’t you like math– , I like Chinese very much.
to his scientific research, the professor cared little about his family.