The silk road, _______ Marco entered China, was important for the exchange of goods and ideas.
| A．which | B．along which | C．after which | D．where |
The young couple have been admitted into a badminton club of late, where they can enjoy all the benefits and _________ of club membership.
| A．charges | B．procedures | C．privileges | D．circumstances |
I can’t advise you what to do and what not to do — it’s a matter of _________.
| A．conscience | B．comprehension | C．awareness | D．identification |
I just wonder ________ that makes him so excited．
| A．why it does | B．what he does | C．how it is | D．what it is |
A new college is being built in ________ I can remember was an old factory 20 years ago．
| A．which | B．where | C．that | D．what |
A clean environment can help the city bid for the Olympics, which ________ will promote its economic development．
| A．in nature | B．in return | C．in turn | D．in fact |