問題 1
OX
That is his house.(あれは彼の家です。)
ヒント
「~が」(主語という)にあたる言葉が一人や一つの時(単数という)の be動詞は is だね

「~が」(主語という)にあたる言葉が一人や一つの時(単数という)の be動詞は is だね
否定文は be動詞 is のうしろに not をつけるだけだね
疑問文は be動詞 is を文の一番前に持っていくだけだね
答える時は that ではなく it「それ」で答えるね Yes なら,Yes, it is. No なら,No, it is not. (短縮形なら isn't)だね
Is this it is
Is this, it is
He is not
door is
Is he your brother? Yes, he is.
Is he your brother?—Yes, he is.
Is he your brother?—Yes, he is. だね
That is not your desk.
That is not your desk. だね
She is busy.
She is busy. だね