I wish to thank your student Tom, without _______rescue couldn’t be offered to my drowning boy so soon.

He cut the orange into pieces put them into the bowl.

olved,the problem of food safety may lead to more serious results.

Must I go to the gym three times a week? —No, you ______. Twice a week is OK.

_____ of the workers in this factory is about five hundred. ______ of them are women.