In the sentence below:
Manpower provides a range of services that satisfy/satisfies the needs of the whole employment and business cycle.
Should the verb in the noun clause modify "range" or "services"?
In the sentence below:
Manpower provides a range of services that satisfy/satisfies the needs of the whole employment and business cycle.
Should the verb in the noun clause modify "range" or "services"?
Both work and are grammatical.
"satisfy" and 'satisfies" give the sentence slightly different meanings, which boil down to the same thing in almost all cases.
The meaning is slightly different, so you should decide which one you mean. But most people won't notice the difference.
The short answer: Range. The sentence should read: Manpower provides a range of services that satisfies the needs of the whole employment and business cycle.
With certain phrases or sentences it can sometimes sound odd at first listen, but the verb should always modify the noun that precedes the preposition, not the object of the preposition. While it may be true that the "services satisfy", it is the range that we are talking about, while "of services" merely further describes the kind of range.
A longer complement to the answer has to do with whether the word "range" is singular or plural. In this case it is safe to say that it is singular, hence "satisfies". But what if you use "group of services" instead? Is "group" singular? I would argue for leniency on this one, making either option okay, but would personally choose "plural" and refer you to this question and discussion: Is "group" singular or plural?
The logic you point out does apply (especially in British English) when deciding whether a group is meant to be sensed as singular or plural.
– davidly Sep 16 '15 at 15:28