Chinese exports have been hit hard by falling world demand, with millions of workers _______ to their villages after the factories that employed them closed down.
| A．returned | B．returning | C．have returned | D．return |
Purchasing houses that are environmentally responsible is a good investment for____ about their own health and well-being of the earth.
| A．those who caring | B．whoever worry |
| C．anyone concerned | D．those who is concerned |
Energy efficiency is one of the top_____in Dockside Green, one of the eco-communities.
| A．privileges | B．priorities |
| C．possibilities | D．preferences |
The idea of travelling abroad really appeals to a lot of Chinese people.That's why every year ______ more people applying for passports.
| A．promise | B．expect |
| C．witnesses | D．instruct |
In most cases, college graduates don't mind what job they will do _______ it is one where they can earn money to support themselves.
| A．even though | B．as long as |
| C．as if | D．now that |
Though they are sharing space in the apartment building, residents will have _____utility meters(公用事业电表).
| A．available | B．alternative |
| C．individual | D．inconvenient |