—The hall for international conferences is of great importance.
—I see, and we are sure to complete it on time.
| A．built | B．to be built | C．having been built | D．building |
______ is known to us all that the 2012 Olympic Games will take place in London.
| A．As | B．What | C．Which | D．It |
--Sorry, I’m late. The bus got hold up in traffic.
--_____________.
| A．You can say that again | B．It won’t bother me |
| C．Never mind | D．It all depends |
Li Na had managed to ______ in motion an upsurge（高涨）of students learning tennis across Asia.
| A．take | B．put | C．set | D．make |
The manager was very angry, for he had sent his business partner two thousand machines yesterday, half of _________ unqualified.
| A．them | B．what | C．which | D．whom |
John’s aim is to inform the viewers that cigarette advertising on TV is illegal, __________?
| A．isn’t it | B．is it | C．isn’t he | D．is he |