The boys are playing volleyball on the beach.以playing volleyball为提问部分,______are the boys______on the beach?
问题描述：
The boys are playing volleyball on the beach.
以playing volleyball为提问部分,______are the boys______on the beach?
答
那些男孩们在沙滩上打排球.
What are the boys doing on the beach?
那些男孩们在沙滩上做什么?