题目内容：

everyone is good at singing in our class 对singing提问 （ ） （） everyone good at in your class?

优质解答

What is

追问：

( )Mr Ma and his sister ( )e-mails to jim ? 有四个选项 ：are ；send。do ；send。is；sends。does。send。请问选？

追答：

Do, send 因为主语是两个人