i found ____hard to speak english well when i was in junior middle school.

问题描述:

i found ____hard to speak english well when i was in junior middle school.
A it B it is C that was D that is

A
find it +形容词 to do sth.“ 发现做.是.的”
等于:find +(that)it's+形容词 to do sth,但本句B时态不符合.