n is addicted to drugs. He isn’t hopeless, ishe—Yes, _____ he mends his ways and starts all over.

Personal computers were in use in China when Amy visited the country in twentieth century(世纪).

______ it is true that a student’s most important goal is to do well in his or her studies, it doesn’t need to be the only goal

从句式的角度分析，不同于其他三项的一项是（ ）

When college students ________ future employment, they often think of income and status.[ ]