Key(1):

(A)I.C 2.B 3.B 4.B 5.A(B)1.didn't start until 2.first, end 3.queue jumper 4.his hat 5.in line (C)I.No, they weren't. 2.The neighbour said the,dog was dead.3.Because they thought the mushrooms they ate were poisonous. 4.No, there wasn't. 5.A car hit and killed it.