(1) I believe it will be sunny tomrrow(改为否定句)
(2) I'll try my best to finish it(同义句转换——
I'll _____ ______ ______ to finzsh it.
(3) I'm sorry that I lost book(同义句转换)
I'm sorry _____ _____ ______ your book.
(4) With his mother's help he became a writer(同义句转换)
With _____ _____ _____ his mother ,he became a writer
(5)We are sure we will win the football game next time(同义句转换)
We are sure _______ ______ the football game next time.
(6)You must do it right away or you'll be later(同义句转换)
You must do it _______ _______,or you'll be later.