________ for several weeks，the city needed food.
A．As having flooded B．Being flooded
C．Having been flooded D．To flood
________ the past，our life is much better.
A．Comparing with B．Be compared
C．To compare with D．Compared with
New ideas sometimes have to wait for years before ________.
A．being fully accepted B．fully accepted
C．fully accepting D．fully being accepting
．________ bricks，workers press clay into blocks and bake them to the requisite hardness in a kiln.
A．Made B．To make
C．Being made D．To be made
He always dreams of ________ a chance for him to bring into full play his potential.
A．there being B．there to be
C．there is D．being
With the plane ________，some passengers on board feel sick and want to throw up.
A．taken off B．taking off
C．to take off D．would take off
