Our factory has been developing rapidly these days． This year’s production is five times ______ it was ten years ago．

This poem can remind of the good old days___ studied in this beautiful school.

 —______ of them knows Japanese, so I have to ask a third person for help. ―You’d better ask Tom for help. He is good at Japanese.

If you miss so many lessons, you must fall behind ____ classmates.

Chery，a car maker in Anhui province，sold nearly 700,000 units in 2011，with the total value ________ it was in 2005.