问题
                    
Tom _________ Mary in 1998. That is to say, they _________ for 12 years.
                            A:change
B:understand
C:train
D:carry;
                        
                        B:understand
C:train
D:carry;
正确答案是:
                         
                        
                        
                    同类题型
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―Are you still busy? ―Yes, I ________ my work, and it won’t take long