31. ______ I really don’t like art, I find his work impressive.
29. If you ______ go, at least wait until the rain stops.
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.