_____you don’t lose heart, it will be easy for you to overcome the difficulties.
With these words, they all ___ to look for the lost child.
---Would you go swimming with us? ---____, but I’m very busy now.
Would you please ___ our drive around the city?
This is one of the most interesting film ___ we’ve ever seen.
I’d like another cup of coffee.Add more sugar ___ it, OK?