Chọn đáp án đúng nhất

1.I can't cope well ...... all the homework  I've got to do!
A.on     B. of     C, about      D.with
2.Magaret ........ in the school marathon  for charity before.
A.has never run   B. never runs     C. never ran        D.has never been running
3. Further education is basically education ....... degree level for people above school age.
A. about       B. before    C.after     D.below