根据括号中所给的汉语写出单词，使句子意思完整正确。
Mothers’ Day is coming next month. I want to     (买) a gift for her on the Internet.
We all think Helen is     (乐于助人的) enough to be a YOG volunteer.
I spend so much time on my     （作业）that I can hardly have any time for my hobbies.
It is pleasant to     (参观) Nanjing in spring because a lot of flowers come out then.
The poor boy was not old enough to look after      (他自己) when he was kidnapped .
B)根据句子意思，用括号中所给单词的适当形式填空。
It seems that I am much      (busy) than I used to be after I changed my job.
Last Sunday, we held a party to celebrate my grandfather’s     (eighty) birthday.
I think the teacher’s advice on how to study Chinese is worth     (follow).
Listening to light music can make you feel     (relax) after hard work.
“Will it be possible to get me another chance?” he asked      (hopeful).