Question

【题目】There is no need to tell him about it.He seems________the fact.

A．to know B．to have known

C．knowing D．having known

Answer 1

【答案】B

【解析】选B。句意：没有必要告诉他了，他似乎已经知道这个事实了。sth./sb. seems to do，know的动作发生在seem之前，所以选B。