16. except that your handwriting is a little bad
15. Compared to / with
14. (in ) learning English
13. to keep out
12. Hearing/On hearing the news
11. we each (should) buy a good dictionary
19.hope for
20 In terms of
(18) 参考答案
18. might/may as well
17. dates back to
16. As a consequence/in consequence of