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 |
推荐套卷
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 |