It is really a challenging job to deal with people _____ various ages and backgrounds　　[ ]

Every year, we plant many trees on _______ side of the road to make our city more beautiful.

It’s really hot ______January in Harbin nowBetter take off your coat

The SpringFestival falls ________ the first day of the Chinese Lunar year

It has been said that in no country Britain can one experience four seasons in the course of a single day.[ ]