He was ___ a great Marxist.
Clothing made of man-made materials has advantage over ____ made of natural ones like cotton, wool or silk.
What surprised me most was ____ to meet his girlfriend again.
--- Steven, where did you come across the famous novelist from England?--- Believe it or not, it was in the supermarket ____ we went shopping last Sunday.
--- Come on, please give me some ideas about the project.--- With so much work ____ my mind, I’ll almost____.
---Where do you think ____ he ____ the computer?---Sorry, I have no idea.