Half an hour has been made full ______ o
题型:选择题
问题:
Half an hour has been made full ______ of _____ the problem.
A.using; studying
B.use; to study
C.to use; to study
D.use; studying
Half an hour has been made full ______ of _____ the problem.
A.using; studying
B.use; to study
C.to use; to study
D.use; studying