Answer:
1) wrote 2)had 3) missed out 4) took 5) were 6) waited 7) saw 8) had 9) Found 10) waited 11)recorded 12)became 13)went on
Explanation:
I think it would be A because the others don't really make sense to me.
Answer:
The second sentence:
The scientist said there is only one thing to be done to save our river: "Stop polluting the groundwater with fertilizers."
Explanation:
The other sentences do not make good use of the colons.
Colons are used between two independent clauses, e.g.
(He got what he worked for: he really earned that promotion.)
They are also used before a full sentence statement, like in this Question.
The other three sentences do not put the colons in the right places. Only the second one does so.
Hope this helps! (brainiest!)