It soon became clear that the Labour Party had，for the first time in its history，won its third election ______.

More highways have been built in China，________it much easier for people to travel from one place to another.

Was it under the tree ______ you went away talking toa friend—Sure. But when I got back there, the bike was gone.

must apologise ________ you so late.

When I saw my teacher nodding _______ to me, I calmed down and went on with my performance[ ]