_______for the work, he went to sleep at ease.
Only when_______ 30 years old ______ to learn English.
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.