The reason _______ he explained for his being late was ________ his alarm clock didn’t work.
17. It’s said ______ ______ was everything _______ Mr. Professor could tell us.
16. I returned home with some roses and only then __________ find my favorite vase missing.
15. She was lifting handfuls of fine sand and letting it pour __________ her fingers.
14. — Excuse me. Do you happen to have change for a 50-pence piece? — __________. I’ve just used up all my coins.
12. -- Why didn’t you come to see the film with your parents last weekend? -- I _____ my lessons for the month- exam.