Fill in each of the blanks in the following sentences with a suitable preposition or adverb. We hope that this will increase your awareness , and help you to start using, this facility. This is important, because you need to know what a system that performs well looks like prior troubleshooting performance. Our memory is limited, but our imagination is unlimited, and it feeds optimism and hope. He turned up at the party unexpectedly. This took me completely surprise. I asked her the reason for her absence, and she answered hesitation. It took me several minutes to figure what had happened. The job is great terms of salary, but it has its disadvantages. College students should channel their energy useful activities. But there was a price below which they dared not go, for it had happened that a fisherman d espair had given his pearls to the church. In fact, they seem very uneasy the whole idea of strangers in their village.