第二节 根据句子意思填空 (共5小题；每小题1分，满分5分)
78. 这个过去是模特的女孩现在是个著名演员。
The girl who ___ ___ _______ _______ a model is now a famous actress.
79. 尽管你的书法在如此短的时间内很难提高，你还是应该坚持练习。
Though it is difficult to improve your handwriting in such a short time, you should still ________ __________.
