来自李存东的问题
Heisaboystudent.(改为复数句)___________________
Heisaboystudent.(改为复数句)___________________


Heisaboystudent.(改为复数句)___________________
Heisaboystudent.(改为复数句)___________________
Theyareboystudents.
但注意以下两个例子:Theyarewomendrivers./mendoctors.