Grades encourage students to learn
It is admitted that(不得不承认的是) marks really encourage the students to learn, but their importance should not be exaggerated .
还可用It might be admitted that 可能被承认的是
people will spend less time on cooking food in 20 years
Admittedly/Undeniably , time spent in the kitchen preparing a tasty meal can be pleasant and fulfilling ,not to mention the enjoyment of the recipients of the food.
However , taking into consideration all the points elaborated on above, it is foreseeable that in the next two decades ,people may choose to spend less time in the kitchen and more time eating out.
taking into account 将······考虑在内