It’s a little surprising that a house made of wood or bamboo may stay up in an earthquake while _______ made of steel and concrete may fall down.

It’s a little surprising that a house made of wood or bamboo may stay up in an earthquake while _______ made of steel and concrete may fall down.

A．one              B．that              C．it                D．what

It’s a little surprising that a house made of wood or bamboo may stay up in an earthquake while _______ made of steel and concrete may fall down.

1. A.
   one
2. B.
   that
3. C.
   it
4. D.
   what

It’s a little surprising that a house made of wood or bamboo may stay up in an earthquake while it is easier for       made of steel and concrete to fall down sometimes.

       A. one         B. that                   C. it              D. what

It's a little surprising that a house made of wood or bamboo may stay up in an earthquake,

while     made of steel and concrete may fall down.

A．it         B．what           C．what         D．one