Many buildings in the city need repairing, but the one     first is the library.

I am not accustomed to _______when studying or working, so please remember this and don’t do it again.

So many problems ________， he is having a difficult time.

11.－Have you considered ___ your job? －No, I consider my job ____interesting .

______ with high demand and serious shortage of preschools, the local government is undertaking a major expansion.