— Joan was badly injured in the accident yesterday and she was sent to hospital. — Oh, really? I ____. I ____ visit her.
The hall __ we saw the film was very clean.
--Let us see your pass, ___. ---Sure.
I can't __ the difference between them because they look like the same.
He ___ work in Hangzhou, did he?
Do you know __ to deal with this kind of person? A, how B. which C.what D. that