如箭线法图所示（时间用天表示），如果管理层希望用10天完成项目，项目时差是多少？（）
A.0天
B.-4天
C.2天
D.无法确定
参考答案：B
用所给动词的适当形式填空。
1. Li Hong _____ (like) these shoes very much.
2. Lucy often _____ (speak) Chinese in the morning.
3. _____ Lily _____ (come) from China?
4. Nancy_____ (not know) your name.
5. Let's _____ (make) friends.
6. May I _____ (ask) your name?
7. Where_____ he _____ (work)?
8. _____ she _____ (have) any friends in China?
9. He _____(want) to come to China.
10. He can _____ (call) her Mary.
借记卡IC卡电子现金交易不使用密码，电子现金最高余额不得超过（）规定的最高限额。
