His father makes a promise to him that he will buy him a computer if he _____a good score for the entrance examination to college this June. [ ]

.—Excuse me_________ did you say you’d like to do,Miss Kilp? — I said I’d better go back to the office.I’m going to meet someone this afternoon

What is known to us all is that the bacteria that live in the soil help to _______ our wastes.

The research lacks evidence, and therefore, its conclusions are doubtful.

The local authority is trying to ______oversea investment by beautifying its environment