When I try to find ______that prevent so many people from taking part in the program, it seems to me that there are two main causes.
They all wanted to stop working because they were tired, but ___of them would say sl.
________Hard you may try, you can’t possibly persuade Tom to give up smoking, for he is so addicted to it.
Every year, Tom remembers to have some flowers ______to her mother on her birthday.
It’s not easy to learn English well. _______as much as possible is necessary.
-Peter, would you like a beer to go with your meal?—Sure, it___________.