Question

— I think your father is very busy.
—So he is._______ he still takes a walk with us sometimes.
A. So          B. And        C. Or          d. But

Answer 1

D 

連詞的用法。so因此，表結果；and又，而，表并列或承接；or 或者，否則，表示選擇；but但是，表轉折；根據句意，他確實很忙，但有時他仍然與我們一起散步。故選D。