The purpose of the newly-invented robots which can help bathe people is to the dignity and privacy of patients. A. destroy C. observe C. attend D. preserve
To get to the top of the mountain, we had to _______.
When he entered college, he began to learn _____ language.
The shop manager always says to his assistants, "We can never be ______customers.
--Did Mary come to your birthday party? --No. I __________ her, but she was away on business.
All the preparations_____, we're ready to start.