1.He was uncertain (无把握的) of the meaning of the sentence.
2.I'm sure her knowledge of English is adequate (足够的) for the job.
3.He is an outstanding (优秀的) basketball player. He plays basketball very well.
4.The driving instructor (教练) told me to pull up at the post office.
5.Obeying (服从) orders is one of the most important responsibilities for soldiers.
6.We should allocate (分配) our time wisely so that we can study effectively.
7.I'm glad that your daughter has a talent (天赋) for music. She learned quickly.
8.The singer was accompanied (伴奏) at the piano by his pupil.