—Recent pressure at work may ______ his behavior.
-Would you like to go to visit Tiangong-1?-Of course, but __________,it seems impossible.
I often oversleep in the morning. __________,my roommates always wake me up.
__________ the fierce competition in finding a good job in big cities, many fresh graduates are trying their fortune in mediumsized ones.
The great success of this program has been __________ due to the support given by the local businessmen.
-Did you remember to pay the telephone bill?-The telephone bill? __________