He is a talkative man, but he didn’t say a word in today’s discussion. I am not sure how to _____ his silence.
I still doubt _____ he can overcome(克服) all the difficulties..
He couldn’t ______ the fact that the money was found in his house.
I met her quite ______.
If you lie to me, you could hardly _________ it.
I ______ her, but I never could.