完形填空
After becoming successful, a man felt that he should repay his mother, 1 he asked her,“Mother, what can I give you?I really want to repay you for 2 you have given to me．”His mother looked 3 and said,“You don't have to repay me．”
His mother 4 to ask for anything, but he continued to persist(執(zhí)著地堅持)．To put an end to the 5 , she said,“All right．If you insist, then tonight you stay on the 6 with me, just as you 7 when you were a baby．”He said,“That's a(n) 8 thing to ask for, but if it pleases you, I will．”
As soon as he 9 , the mother got up and brought a glass of water．She 10 the glass of water on his side．Feeling the wetness under him, he moved away to the other side of the bed．As he settled down, his mother poured 11 glass of water on the other side．Later he felt that this part of the bed was 12 too．He woke up and saw his mother with the glass in her hand．He asked 13 ,“What are you doing, Mother?Why do you 14 me to sleep on a wet bed?”
His mother said,“I slept with you, when you wetted the bed in the night．I 15 your nappy(尿布)and moved you to the 16 part of the bed, while I slept on the wet side．You wanted to repay me．Can you sleep here even for one night with me on a wet bed?If you 17 , I'll take that as my repayment．”
How true it is that of all the 18 in the world, the one that can never be repaid is the one you 19 your mother．You can never repay the 20 , care and time your mother gave to you in order to bring you up．You are a part of her flesh and blood; don't forget this．
