Gary, please do me a favor--- _____ my laptop for me. 

Premier Wen’s three-day visit to Japan, _____as the “ice-melt” trip, make a great difference to the relationship between China-Japan.

 ________ mud on his trousers brushes off easily.

---  Why do you want the book? ---- _________, sir.

My spoken English was poor and you can imagine what great difficulty I had ______ myself understood.