问题
                    
Nobody knew _______ a living in that country.
                            A:to do
B:to make
C:how to do
D:how to make
                        
                        B:to make
C:how to do
D:how to make
正确答案是:
                         
                        
                        
                    同类题型
                    I have a computer, ______I don’t play computer games on it.
Students are encouraged to _________ the design competition for robots at the university.
Parents always _______ great improvement in study ______their children.
I agree with most of what you said, but I don’t agree with ________.
Which floor does John live on? — He lives on the __________floor of the building.