If we go on using energy so wastefully, __________ are that our oil wells will be dried up before new energy sources can be found to replace oil.
__________ the mother sacrificed everything for her daughter.
Many people in this country eat _______________ as they actually need every day.
With the help of the firefighters ,the workers managed to escape from burning mine , ___________.
According to a new study by a British’s university , learning ______ second language can lead to ________ increase in your brain power.
To succeed in a difficult task ,______________.