）Beijing is one of the ______ in the world today.

—What’ s the low-carbon life style like? . —Save       energy, produce        carbon.

I think Bob is the suitable person to take the job because he can do the work well with ____ money and ______ people.

I know this plan is far from perfect, but I just can’t think of _______one.

—Do you like the film 13 Flowers of Nanjing(金陵十三钗)？—Yes, I do．In fact, I've never seen a _______one．