问题
                    
_______ have you been studying English? —For about 15 years. [ ]
                            A: How
B:, How often
C: How long
D:, How much
                        
                        B:, How often
C: How long
D:, How much
正确答案是:
                        
                        
                        
                    同类题型
                    We’re going to play _____ No.4 Middle School. I’m sure we will win. [ ]
Look! The robber is climbing ______ the wall. []
Wearing red can also make for you to take action.
Playing with _______ robot is _______ unusual experience for me.
What a hot day! —The weather report says it will be even tomorrow.