5. The day breaks, _______ the birds are singing.
____ the terrible weather and the possible dangers ahead in the mountains, he insisted on going there alone.
________ by the advances in technology, many farmers have set up wind farms on their land.
The system has been designed to give students quick and easy _________ to the digital resources of the library.
The children all turned___________the famous actress as she entered the classroom.
She brought with her three friends, none of ___________ I had ever met before.