Don't be too hard_____ the boy; he didn'
题型：选择题
问题：
Don't be too hard _____ the boy; he didn't mean _____ it. [ ]
A. at; doing
B. on; to do
C. on; doing
D. for; to do
Don't be too hard _____ the boy; he didn't mean _____ it. [ ]
A. at; doing
B. on; to do
C. on; doing
D. for; to do