He is ______ to be in Shenzhen, looking for a job.
The hat borrowed from the drama company was so dirty that it required ________ thoroughly.
I felt very strange __________________.
________ had been done, the working efficiency of the employees still remained low.
_______ as “a class of one ”, independent learning enabled you to study at your own pace.
______ it be true that we will have to wait for 3 hours in a line to get into the French Pavilion in the Expo Site?