I prefer to eat in that restaurant, because the ____ of service there has improved a lot.

Due to the widespread________ of this medical technology, more diseases can be discovered and treated at an early stage.

Young people use more Web language in their conversations, such as “Geili” because such language gives them a sense of ________.

—How can I use this washing machine?—Well, just refer to the _______.

Bill was doing a lot of physical exercise to build up his_______.