It has been evident that too many children in the city are left ________ when their development requires parents’ close attention.
Most of the students haven’t finished their papers on time for __________reasons---one of which was that they carried out a week-long investigation in the countryside.
The government is devoting resources to establish public health systems. _________ , the physical conditions of children have improved greatly.
The teacher finally _______ his project to the school board for approval.
Looking for information on line today is very easy ; the _____________is how to tell whether the information you are getting is useful or not.
It’s reported that global warming is heating the planet twice as quickly as _____ feared.