几道英语超级简单的题目`

几道英语超级简单的题目`
用适当的介词完成下列句子.
---Do you have a hard time _______science?
---Yes.Can you help me?
用句子画线单词的反义词或对应词完成句子.
The teacher said that I was ________ at English,but lazy at math.（画线部分是lazy）