There are enough cups for each visitor to have _______.
28. The reason for his success is ______ he worked very hard.
27. He couldn’t ______ the fact that the money was found in his house.
26. —Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
25.—Why is Mr. Li so happy this morning? —Because he was honoured with a(n)______ for excellence in teaching.
23. The day ______ she spent with us was never to be forgotten.