David apologized for ______ to inform me of the change in the plan.
Once we discover a mistake, we should not ______ it but correct it immediately, to create better conditions for economic development.
The movie originally ________ for children under 12 is now being used to educate adults
“XiJinping's report, ” a smile on his face, he continued, “_____ to several hot topics, discusses how to increase peasants' income.”
In ________ old society many young women died by so strange and cruel ________ custom.
_____different life today is ________what it was 30 years ago