Although you have lots of difficulties, you must ______your work.

Would you please        the paper for me and see if there are any mistakes?

I am tired after the long work. I want to have a _______.

--Sally, can you ______ the notebook here?   -- Yes, I can．

---At present, one of the best ways to study is working in groups.---More chances ___________ to students to learn from each other.