单项选择题
A.Its not as hard as expected. B.It’s too tough for some students. C.It’s much more difficult than people think. D.It’s believed to be the hardest optional course.
A.Very few of them are engaged in research. B.They were not awarded degrees until 1948. C.They have outnumbered male students. D.They were not treated equally until 1881.
A.Wait for a taxi. B.Buy some food. C.Go on a trip. D.Book train tickets.