—Will you give me a hand? I have some trouble_______ the scientific problem.—Don't worry. I'll try my best to help you _______.
--- Is there __________ in today’s newspaper? --- No. there isn’t.
---I often have hamburgers for lunch. --- You’d better not. It’s bad for you _____ too much junk food.
---Do you often go to the gym? -No. ________. I don’t like sports at all.
They decided ____________ by bus.
---_______do you have an art festival in your school? ---Once a year.