The rising frequency for smoggy days puts me into deep that maybe one day citizens will have to rely on masks to survive.

Economic growth in the world remains weak throughout 2013 and it is hoped that it will up gradually in 2014.

The manager considers it is important that everything _______ by weekend.

63. He was elected_______of the footballteam last year.

______ Tom is ill, _______ he goes to school.