_____ is modest _____ you never to show off.
–Do you know this boy?He works really___.–Yes, I can ___ see him play. He always studies.
I had a little trouble in English grammar.
This book is very ___________ and I am ___________ in it.
He has ____ for ten years.
–What do you think of the man?--I find _____ difficult to work with him.