_________ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.
All of us know that China has thousands of islands, _____ is Taiwan.
The politician was deeply hurt when many of his former support voted _______ him and he lost his place in the government.
Jack wasn’t saying anything,but the teacher smiled at him________he had done something very clever.
The time he has devoted in the past 10 years________ the disabled is now considered________ of great value.
________in the newspaper,I didn’t notice what was happening.