问题
                    
As we know, water is very important ______ us. [ ]
                            A: of
B: to
C: on
D:with
                        
                        B: to
C: on
D:with
正确答案是:
                        
                        
                        
                    同类题型
                    I have a pet, ______ name is Polly.
Is that 120? My brother is seriously ill!—Ok. Help is _________ .
Please arrange an interview with the manger tomorrow, orit is convenient to him.
Have you ever traveled ________ another province ________ China?[ ]
Oh, Miss Wei. Your skirt looks nice. Is it new? — No, I it since three years ago.