Measures have been taken to prevent the accidents, but much _____ for more improvement

Hurry up， you’ll be late for class.

The opening of this section of the road is________until September.[ ]

Not far from the shopping mall, there was a amazing garden, _____the owner was a mean man refusingevery child to enter it[ ]

g provides quiet, peaceful time alone and can bea good _______ from your busy life.