The houses for the low-income families_______ at present in our city will be completed next year。

I found many people ________ on the benches at the end of the day，chatting.

．(2013·江西九江高三二模)________ around the university, we then were taken to a building, where many scientists worked.

 All of the flowers now _____ here have developed from those once _____ in the forest.

_____ on everyday practice, progress in English is a goal which can be achieved．