d to work deep into the night, ______shecouldn’t have spread the messages to all the relevant people successfully.

Most boys ___________ hamburgers .

The world is changing fastI strongly believe that one will easily fall behind _______ he keeps on learning

If you warn me _____ , I’ll have your order ready for you

There are _____ flights between the two cities, _____ it convenient for people in one city to travel to work in the other.