1.They moved into the new block before the_____(close)of the

1.They moved into the new block before the_____(close)of the old airport.
2.With the _____(develop) of the village,everything has changed a lot.
3.Your ansewer to the maths problem is _____(correct),you must correct it now.
4.Hoe interesting it is _____ (stay) with the lovely pandas in the park.
5.You should stop _____ (be) too nervous and try it again.