问题
                    
These words are important. Please .
                            A:pass; off
B:past; off
C:pass; on
D:past; on;
                        
                        B:past; off
C:pass; on
D:past; on;
正确答案是:
                         
                        
                        
                    同类题型
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n go out,you promise tobe back before 10 o’clock
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Let’s put off the picnic until next week, _____ the weather may be better.