25: 为什么“The professor and scientist are coming to give us a report on modern education”是错误的？

Question 25: Why is it wrong to say "The professor and scientist are    coming to give us a    report on modern education."?    

Answer:    If there's no article before the word "scientist",    "professor" and "scientist"    should be regarded as two identifications of the same person, thus the subject of     this sentence is a singular and we can only use "is" as its    predicate.

　

问题25: 为什么“The professor and scientist are coming to give us    a report on modern    education”是错误的？

回答: Scientist前无冠词，说明一人兼有两种身份，指同一人应作单数。 如果 The professor and the     scientist则应该用are，指的是两人。