__________ in 1993, the EU, together with the US, is one of the two largest economies in the world.
| A．Having founded |
| B．Founded |
| C．Founding |
| D．Being founded |
Not until________,_________.
| A．did she take off, I realized | B．she took o ff, did I realize |
| C．did she take off, did I realize | D．she took off, I realized |
It was in the factory _________ his friend worked _______ he picked up a lot of experience.
| A．where, where | B．that, where | C．that, that | D．where, that |
It is the film _______ director is Steven Spielberg _______ attracts quite a few viewers throughout the world.
| A．that; who | B．which; that | C．whose; that | D．whose; who |
——Where did you come across our chemistry teacher ?
------ It was in the supermarket ______ I purchased mooncakes.
that B. which C. where D. when
Only when your identity has been checked__________.
| A．you are allowed to come in |
| B．You will be allowed to come in |
| C．will you allow to come in |
| D．will you be allowed to come in |