It is ________ the customers’ needs that has made chain stores so popular in big cities in China.
The meetingfor two hours,but they stillany agreement.
—Dad, when shall we go to visit my grandpa? —Grandpa is very busy at present.We'll go to see him whenever __________.
Do you think the idea he stuck ____correct?
The hungry man eats his food _______he hadn ' t eaten for a week.
We must ________ our task, however hard it is.