deepthit wrote:
Unlike the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel cells and batteries, a permanently orbiting space station will have to generate its own electricity.
"short flights of the shuttle and earlier spacecraft" which makes it plural, so i think using "whose" make it sound better than using which. Please clarify
"Which" is both the plural form and the singular form.
The pen, which you gave me, is lost.
The pens, which you gave me, are lost.
"Whose" is also both the plural form and the singular form, but in possessive. Note that "whose" is the possessive form of both "which" and "who".
The briefcase, whose handle is broken, is lost. (possessive of "which" - singular)
The briefcases, whose handles are broken, are lost. (possessive of "which" - plural)
The girl, whose father came yesterday, is sick. (possessive of "who" - singular)
The girls, whose fathers came yesterday, are sick. (possessive of "who" - plural)