---Is this book Betty's? ----Yes , it's ________.
-- Does Lisa have enough time to sleep every night?-- ________. She always looks so sleepy in the mornings.
-- Do you have any idea________?-- Most people think it is the terrible weather. And I think so.
According to Ma Yun, great changes ________ in the field of online business in the1990s.
Although it has rained heavily all the morning, the kids ________having P.E. classes on the playground because they will have an exam soon.
My parents and I have a(n) ________ time watching the film The Fury because everyone in the family is so excited about war stories.