问题

old man in blue, university professor, is teaching his students unusualstudy skill.
A: n; a; the
B:An; an; an
C:The; an; an
D:The; a; an;
B:An; an; an
C:The; an; an
D:The; a; an;
正确答案是:
同类题型
Many a student____ wearing MP3 players while walking on the streetIt’s quite dangerous
Over the past decades,sea ice___________in the Arctic as a result of global warming.[ ]
What did the teacher say just now–He asked the students_____.
Though this question is very difficult, if you ________ trying you will find the right answer.[ ]
212We must make sure that all the boxes should__________the owners’ names