請(qǐng)選擇,并講講原因.
1.Jack looked down ______ Tom for his poor manners.
a.to b.at c.on d.in
2.Some people can’t tell red _______ green,as there is a fault in their eyes.
a.by b.on c.from d.over
3.When John woke up he was in the hospital,but he didn’t know how that had come ________.
a.about b.around c.by d.across
4.People who live in a small village are bound to see a good _______ of each other.
a.quantity b.amount c.deal d.degree