We should avoid ________ untrue claims about the products or services.
| A．falling behind | B．falling for | C．to fall behind | D．to fall for |
For many cities in the world, there is no room to spread out further, _______ New York is an example.
| A．for which | B．in which | C．of which | D．from which |
I haven’t seen Ann for ____ long that I’ve forgotten what she looks like.
| A．such | B．very | C．so | D．too |
Elizabeth has already achieved success _____her wildest dreams.
| A．at | B．beyond | C．within | D．upon |
My parents were quarrelling about me ____ I could not quite tell why．
| A．since | B．though | C．if | D．until |
A dozen ideas were considered____the chief architect decided on the design of the building．
| A．because | B．before | C．whether | D．unless |