注意：此页面搜索的是所有试题
题目内容
（河北建筑工程学院-大学英语）
(单选题) He couldn’t remember( ).(本题1.0分)
A、 what was the formula
B、 what were the formula
C、 what the formula was
D、 what the formula were
A、 what was the formula
B、 what were the formula
C、 what the formula was
D、 what the formula were
参考答案
