He spent all his time ______ children in poor areas _____ math.
A: help, study
B: helping, studying
C: help, studying
D: helping , study
A: help, study
B: helping, studying
C: help, studying
D: helping , study
举一反三
- Do you have any idea what Jim does all Sunday He spends as much time idling about as he does______. A: his study B: studying C: to study D: on his study
- He spent all his time ____________ (study) English.
- He devoted all his life to ________the poor. A: help B: helping C: helped D: e help
- He has devoted his life ______ disabled people. A: to helping B: to help C: helping D: help
- He has devoted his life _____blind people. A: to help B: help C: to helping D: helping