问题
                    
The more one is ________ the Englishspeaking environment, the better he or she will learn the language. [ ]
                            A: exposed to
B: filled in
C: caught on
D: kept up
                        
                        B: filled in
C: caught on
D: kept up
正确答案是:
                         
                        
                        
                    同类题型
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