下列各句中，没有语病且句意明确的一项是

When they met again, the two friends talked about lots of things and persons ______.we could remember in the school.

Rosa Parks was respected by the black people because she had _____ for equality all her life.[ ]

ering your salary, you should________ at least 100 dollars a week

Step By Step is the only one of the books________ with the tape in the bookshop.