rearrange the following sentences:
(a) communications/not matter/were slow/it did/between different/when the/parts of the world

(b) for a/people feel/our times/the need/but in/common language

(c) to the put forward/solutions/problem/have been/various

(d) unconnected with/creation of/the first/an artificial language/was the/any existing language

(e) invention of a/natural/based on/the second solution/synthetic language/was the​