--- Do you know what they are whispering about? They look mysterious．
--- ________．None of our business．
A． I am all ears
B． Don’t be a fly on the wall
C． Let the cat out of the bag
D． The wall has ears．
With your help, there is no doubt ______ our plan is meant for will work out successfully．
A． that what B． whether that
C． what that D． that whether
The company has changed some of its working practices _____ complaints and criticism from the customers．
A． in respect to B． in response to
C． in return for D． in exchange for
He asked me to give him a lift ________ I could make an explanation about the crowded space in my car．It was so hard to refuse him!
A． until B． while C． before D． when
---________ has brought about the improvement of Chinese farmers’ living standards?
---The Party’s social benefiting policies, of course．
A． What is it that B． What it is that
C． What is that D． What is it
The 2013 population investigation shows one in four people in Jiangsu will be over 65 and the number of over-85 people ________ by 2030．
A． have doubled B． will be doubled
C． will have doubled D． will double
