_____ the woman entered the office, Tom’s eyes lit up.

China needs to strike a balance between maintaining a ______ fast and stable development and economic structural adjustment. 

I’m not feeling very well today, ______ I would do the work myself.

---- I was riding along the street and all of a sudden, a car cut in and knocked me down. ---- You can never be _______ careful in the street.

Qingdao is ＿＿＿＿＿＿＿ beautiful city in summer.