The reason_________ he was late for work was_________ he didn’t get up early.
___ he was ill, I was expected to take his place greatly surprised me for I didn't have much working experience.
Only after a baby seal is pushed into the sea by its mother ___ to swim.
"Will you be able to finish the job this week?" " ___ ."
She was just about to explain ___ she hadn't passed her maths test chiefly out of carelessness ___ her uncle came.
--Shall we meet right now?--Sorry. I’m too busy to _______ for the moment.