________ is often the case with human beings, many animals sleep a lot when young, but sleep much less when they get older.
A．Which B．What
C．As D．That
Jennifer is always absent from school, ________ I suppose is why she is blamed now and then.
A．which B．who
C．that D．what
The college student lost his life trying to save the drowning child, ________ he will always be remembered.
A．in which B．about which
C．by which D．for which
That man is the richest ________ pleasures are the cheapest.
A．whose B．where
C．when D．which
The Charles Dickens Museum in Doughty Street is the only one of his London homes to survive, ________ he wrote Oliver Twist.
A．where B．that
C．which D．what
In South Africa, English is the language ________ black parents wish their children to be educated.
A．for which B．that
C．in which D．when
