问题
                    
What do you think of math? — I find difficult to learn it.
                            A:that
B:this
C:its
D:it
                        
                        B:this
C:its
D:it
正确答案是:
                        
                        
                        
                    同类题型
                    Wang Lin has decided to ______his bad habit of smoking. — That’s good news. I hope I can do it.
I won’t go to see the film this evening because I _____ my ticket just now.
The teacher divided the students in his class _____ ten teams.[ ]
I feel really ________ before the interview.— Take it easy. Sure you’re the best.