who is (he)? (he )is my (younger brother)how old is (he)? (he) is (3)years (younger)than I am.is (he) (9)years old? yes,(he)is (he)looks younger than (his) age用括号里的词提问会的帮帮忙吧,这是作业

问题描述:

who is (he)? (he )is my (younger brother)
how old is (he)? (he) is (3)years (younger)than I am.
is (he) (9)years old? yes,(he)is (he)looks younger than (his) age
用括号里的词提问
会的帮帮忙吧,这是作业