题目内容：
Directions： Complete each of the following sentences with a suitable word.1.There is fierce competition______ the three leading soap manufacturers.
2.To increase efficiency, they replaced the permanent staff_______part-timers.
3.We would like to announce the appointment of Julia Lewis_____head of sales.
4.The introduction_____new working practices has dramatically improved productivity.
5.I knew I wouldn't get my exam results for several weeks, and I wasn't sure what to do ____the meanwhile.
6.I sent this card ______memory of our happy summer together.
参考答案：
答案解析：