— I think your father is very busy.—So he is._______ he still takes a walk with us som
— 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
D 解析:
连词的用法。so因此，表结果；and又，而，表并列或承接；or 或者，否则，表示选择；but但是，表转折；根据句意，他确实很忙，但有时他仍然与我们一起散步。故选D。
