31. I still remember it was __________ February 14th that Tom and Mary got married.
A. in B. at C. on D. from
32. We are thankful to those who supported us when we were __________ trouble.
A. in B. by C. about D. for
33. From the very beginning the teacher’s words made __________ feel easy and comfortable.
A. they B. their C. them D. theirs
34. Simon is a very warm-hearted boy __________ his sister, Jane, is not. She hardly thinks of others.
A. and B. or C. but D. so
35. The performance of yesterday was so dull that I left the theatre __________ it was over.
A. after B. before C. though D. until
