找出与句中划线部分意思相同或相近的选项。
1. The child looks sad. Let's cheer him up.[ ]
A. be happy
B. make him happier
C. shout
D. give a help
2. We're going to set up a project to help hungry people.[ ]
A. start
B. give up
C. get up
D. turn up
3. They need to come up with some ideas.[ ]
A. think about
B. have
C. think up
D. think over
4. I'd like to help the kids do their schoolwork.[ ]
A. help ... doing
B. help ... with
C. give a help
D. give a hand
5. When he grows up, he wants to be a doctor for animals.[ ]
A. great man
B. vet
C. good doctor
D. kind of animal