1.I've decided to have go,(leaving) my fear behind.
2.(Driven) by a greater demand for this kind of software,the company has employed more engineers to produce it.
3.(Reminded) not to make acall in class,Boris always turns off his cellphoneduring the day.
4.You can't borrow books from the school library (before) you get your student card.
我想知道括号里为什么填这些词,希望是详解,