Fill in the blanks based on your knowledge of the suffixes. 1. contaminate v. → n. 污染物 ______ 2. beg v. → n. 乞丐 ______ 3. refuge v. → n. 难民 ______ 4. manager n. → n. 女经理 ______ 5. library n. → n. 图书管理员 ______ 6. urgent adj. → n. 紧急的事 ______ 7. box n. → n. 一箱(的量) ______ 8. haste adj. → v. 催促,加速 ______ 9. public adj. → v. ______ 10. recommend v. → n. 推荐 ______