11. впиши модальный глагол must, may, can или could по смыслу. • i am sorry. …i come in? • … you help me in my work? • children … play football on the playground. • my sisters is little, but she … read. • … l invite nick to our house? • you … work hard at your english. • don’t ring him up: he … be very busy. • you … read this book. you know english well. • … l put the book on that table?

1. May i come in. Can yoy help. Children must play. But she can read. May i invite. You must work. He can be. Your could read. May i put.

This is a quotation from Dr. Martin Luther King, Jr. 
The meaning of the statement is that while the ugly things your enemies may say about you may hurt at the time, you will eventually forget the person along with what they said. But if your Friends are silent when you need their help, need someone to stand by you and speak up in your support that is a hurt that you can't forget. 
An application of this is in bullying. Friends will stand together against bullying, a false friend will remain silent. 

43.Autumn has come. The trees will have lost their leaves in a few weeks.
44. They are not going to the football match tomorrow, because they are working at that time.
47. Please, don't wear indoor shoes in the gymnasium, or you wil damage the floor.
48. What would/will you say if you saw/see her?
52. Why don't you come with us? We are going to have a lot of fun.
54. The children were really hungry when they got home because they had been running around all afternoon without any food.
56. I am/was not going to speak to her until she apologizes/apologized.
59. You will/would be sick if you eat/ate more chocolate.
61. Don't phone too early because I will be putting the baby to bed.
66. You will not be able to enter the building if you do not have your identity card.
77. I'm sure you will have recovered by then from the shock of meeting Jason here.
80. A new video shop opens today. I am meeting my friend there this afternoon.