I______in London for many years but I’ve never regretted my final decision to move back to China.
Electrical products no longer in use contain dangerous materials which can be released into the environment when they are _____.
There can be little doubt _____ bombing Libya would drive thousands more to take up arms.
The train was crowded and I had to get into a carriage _______ there were already seven other passengers.
_______you write on a subject,you join in an ongoing, trans-historical conversation with others who have written about your topic.
What they are arguing over the meeting is _______ they should invest so much money in that time-consuming project, as they worry about the losing money.