there is a box in the classrom,对a提问则应为-------- -------- ------ ------there in claasrom?
问题描述：
there is a box in the classrom,对a提问则应为-------- -------- ------ ------there in claasrom?
答
how many boxes are there in……为什么是are而不是is呢how many 后面加名词复数，回答的时候，一个就用a/an，多个就复数喽