-When did you go to the States?
-I remember ________ there when I was ten.
| A．having taken | B．to be taken | C．being taken | D．to take |
I found my home town completely ______.
| A．changed | B．changing | C．to be changed | D．to change |
Tom failed ______ the experiment yesterday.
| A．doing | B．did | C．to do | D．do |
The world is _______ seven continents and four oceans.
| A．made up of | B．made out of | C．made from | D．made in |
Japan is an ______ industrial country.
| A．advancing | B．advanced | C．to advance | D．to be advanced |
What way are you thinking of _______ rid of this kind of pollution?
| A．to get | B．get | C．getting | D．got |