When we saw the road with snow, we decided to spend the holiday at home.
A．block B．to block C．blocking D．blocked
Hurry up! Mark and Carl us.
A．expect B．are expecting C．have expected D．will expect
Many countries are now setting up national parks animals and plants can be protected.
A．when B．which C．whose D．where
I have an appointment Dr. Smith, but I need to change it.
A．to B．off C．with D．from
--- Do you think Mom and Dad late?
--- No, Swiss Air is usually on time.
A．were B．will be C．would be D．have been
the course very difficult, she decided to move to a lower level.
A．Find B．Finding C．To find D．Found
