1) незнаю 2) думаю красная
<span>I read books. I read books. I will read
books. I am reading a book. I have read a book</span>
<span>He writes letters. He wrote a letter. He will write a letter. He is writing a letter. He has written a letter. </span>
They play football. They played football. They will play football. They are playing football. They have played football
1)No,he cant.
2.No ,i can't.
3.Yes,they must.
B)
Math is a difficult subject
History is more difficult
English is the most difficult subject for me
c)
Mountain climbing is dangerous sport
Sailing is more dangerous
Motor racin is most dangerous for me