Question

りぼん

9の答えが3で10の答えが1なんですけどなぜそうなるのか分からないので教えて頂きたいです。
他の選択肢がダメな理由まで教えて下さると助かります。
よろしくお願いします！

X
X
Clerk: "I
Brian: "You should have brought an umbrella."
1am taking
2 caught
(4)
Steve:
Barry:
was caught
will take
"Did anyone help you financially when you studied abroad?"
"I studied
my parents' expense."
(1) at
2 by
(3 on
(4)
in the rain on my way to school."
with