5.2 课时作业
Ⅰ.根据提示，写出单词的正确形式
1．Mary explained what we were to do ________ (brief)．
2．We are all impressed by her total ________ (devote) to her job.
3．To write such a book, one needs experience in ________ (add) to time.
4．Let's go to the theatre first and eat at a restaurant a________.
5．We must s________ out the good apples from the bad ones.
