Question

【题目】I don't think _____ hard _____ riding in cars.
A.it, stop
B.it's, stopping
C.this, to stop
D.it, to stop

Answer 1

【答案】D
【解析】think it hard to do sth.，认为做…困难，真正的宾语是不定式，而用it做它的形式宾语，故选D。