填空：根据所给单词，首字母或中文，写出各单词的正确形式，每空限填一词。（共7小题；每小题1分，满分7分）
Are the boys there          (sing) an English song under the tree?
Some African ____________(country) are really poor.
Pandas are in great d____________, let’s save them.
The bank is a___________ from our school, next to the hospital.
Don’t __________(爬) the tall tree, it’s not safe enough.
Be __________（安静）please. The baby is sleeping.
Mr. Wang wants his daughter to be a great ___________ (音乐家) in the future..