Question

【题目】I think is really difficult for me to memorize so many new words.
A.it
B.that
C.This

Answer 1

【答案】A
【解析】I think it be +形容词+for sb to do sth，在这个句子中it是形式宾语，替代后面的不定式。句意：我认为对我而言记住如此多的新单词真的很困难。故选A。