Not until then ________ how important the brakes were.
| A．I realized | B．do I realized |
| C．did I realize | D．I did realize |
In the middle of the room there is a ______ table, with eight chairs around it.
| A．round huge wooden |
| B．huge wooden round |
| C．round wooden huge |
| D．huge round wooden |
-- Look! Everything here is under construction.
--- What’s the pretty small house that ______ for?
| A．is being built | B．has been built |
| C．is built | D．is building |
-- Aren’t you cold?
--- ______. I’m boiling.
| A．Take it easy | B．That’s all right |
| C．Not a little | D．Far from it |
If people keep polluting the rivers, no fish there will survive ______.
| A．at all costs | B．once in a while |
| C．in the long run | D．by no means |
--- I’m sorry I have broken your teapot.
--- ______.
| A．Don’t be sorry | B．Sorry to hear that |
| C．Forget it | D．Don’t worry |