Scientists say it will be five or six years _____ it is possible to test this medicine on human patients.
Shanghai is most beautiful city and we are excited that the 2010 World Expo has been great success.
— Are you getting a new apartment this year?—________ I can’t afford to pay my bills. How can I buy a new apartment?
She was so ________ in her job that she didn’t hear anybody knocking at the door.
The project, ________ in 2009, has expanded the city’s cellphone network to cover one million users.
He put forward his suggestion at the meeting that every means ________ to save the crops before the storm came.