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

选A
句型
find/make it +adj（形容词）to do sth

A，it是形式宾语，指代的是to speak english

A
若选B，因为原句为过去式（found），所以is要改成was就对了，所以不能选
若选C或D要将was或is去掉，所以也不能选
结构：find +it(is)/that+形容词 to do sth.

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
答案：A
需要解析请追问。

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.

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
选项是A。
it在此句中做【形式宾语】，真正的宾语是【不定式to speak english well 】
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选A
是固定说法来的~