From Twitter
...for Question 1:
C is best, because the speaker is sure of the plans so uses 'gonna' (slang pronunciation of "going to") -- the continuous tense, which use when sure of future plans.
...for Question 2:
All the answer options are okay; the speaker is unsureof his or her plans, so uses 'will' or 'might' with the simple present Tense.
EXPLANATION
It may seem contradictory (against the facts/against other ideas), but will is used...
when we are expressing thoughts about plans in the making (plans we are deciding on/about) or thinking about now -- at the present time.
And we use perhaps, probably, likely to or maybe along with will:
Like this:
"Maybe I'll throw this snowball at the teacher's face!"
(thinking about the action/not sure/deciding)
...
"Nah. I'mnot going to do that....
(The action has been decided upon/it's sure to happen/decided)
...
Because even though he's a nice guy, he'll probably get pissed* at me."
*Pissed means angry in American English and drunk in British English.
Come to class and learn to speak proper English! Go to: http://sayinsei.com.
CA
解答・解説の日本語訳
問題１の原文の答えは c. I'm gonna climb.。gonna は going to のくだけた発音で、予定を決めている場合に使っています。問題２は、まだ決めていないので原文は三つの選択肢をいずれも可としています。will / might や maybe、probably などを使って、その場で考えたり可能性を述べたりします。「先生の顔に雪玉を投げようかな」→「やっぱりやめよう」という例では、決める前と決めた後の違いを示しています。米国英語の pissed は「怒っている」、英国英語では「酔っている」意味にもなります。本文の時制の一般化は原文の説明として保持しています。