[单项选择]The chief editor thought he took some liberties with the original in translation. So it was necessary that he make the（）suggested．
A. alterations
B. alternatives
C. alternations
D. altercations

[填空题]He took some extra money with him ______(以防会有紧急事件发生).

[单项选择]A. He will take biology next semester. B. He will take science next semester.
C. He won’t take biology. D. He won’t take science next semester.

[单项选择]He will pass two milestones ______, that is, he will receive his master’s degree and find a challenging job.
A. long ago
B. for long
C. before long
D. long before

[填空题]When Laura was visiting MIT she spent some time with two ______.

[单项选择]

At least 2.3 million people took some kind of online course in 2004, according to a recent survey by The Sloan Consortium, an online education group, and two-thirds of colleges offering "face-to-face" courses also offer online ones. But what were once two distinct types of classes are looking more and more alike--and often dipping into the same pool of students.
At some schools, online courses--originally intended for nontraditional students living far from campus--have proved surprisingly popular with on-campus students. A recent study by South Dakota’s Board of Regents found 42 percent of the students enrolled in its distance-education courses weren’t so distant: they were located on campus at the university that was hosting the online course.
Numbers vary depending on the policies of particular colleges, but other schools also have students mixing and matching online and "face-to-face" credits. Motives range from lifestyle to acc
A. online courses are becoming more important than traditional courses
B. online courses were different from traditional courses
C. online courses are becoming more popular in college education
D. online courses are actually not different from traditional courses