Which sign represents the meaning of saving water?
A. 
B. 
C. 
D. 
—You are late. The meeting _________ for about ten minutes. —I’m sorry. The traffic is heavy.
A. has begun B. began
C. has been on D. have been
The high-speed railway linking Zhengzhou in Henan province to the western city of Xi'an in Shanxi province, started __________ January 17, 2010.
A. in B. for C. on D. since
—Please remember _________water pipe when you don’t need water. —OK, I will.
A. to turn off B. turning off
C. to turn on D. turning on
______ information he offered us! We all thank him.
A. What useful B. What useless
C. How useful D. How useless
—Do you take music lessons in Grade Nine?
—No, but it’s reported that a new Canadian study shows young children __________take music lessons have better memories.
A. whom B. which C. who D. what
