A major issue was put forward by some representatives at the conference __________ the teachers in the remote areas were underpaid.
At the age of 29,Dave was a worker,________ in a small apartment near Boston and ________ what to do about his future.
When he ________ the door,he found his keys were nowhere.
In April,2009,President Hu inspected the warships in Qingdao,________ the 60th anniversary of the founding of the PLA Navy.
________ not to miss the flight at 15:20,the manager set out for the airport in a hurry.
Many of them turned a deaf ear to his advice ______ they knew it to be valuable.