根据汉语意思完成句子 1.她在日语学习方面已取得了很大进步。 She has________ ________ ________ ________Japanese. 2.他继续工作,直到他的爸爸回来。 He ________________________________until his father came back. 3.英语非常有用,同时它又很难掌握。 En4.我会在学习英语中发现许多乐趣。 I can find ________ ________ ________ fun in learning English. 5.你认为的书怎么样? What ________ ________ ________ ________ the books written by Guo Jingming?glish is very useful. ________ ________ ________ ________, it is very hard to master.