number 1 is have. i'd rather not HAVE tell you.
I believe its A. nonstandard is as effective as standard.
D) Nicolas flamel
Explanation: Hagrid mentioned the name so they where trying to figure out who he is.
B.
until - until he comes for example ( time before someone comes or something is happened)
Meanwhile - during a period or an action where another thing is happening (at that time)
Later - after some period - two months later ( after passing of some amount of time