He set up in business____his own and was very successful.

Professor Johnson is said _____ some significant advance in his research in the past years.

U.S. News ____________ rankings of colleges since 1983. They are a very popular resource for students looking to apply to university campus.

When the police officers who took part in the King beating were first brought to ___________,their lawyers used the videotape as evidence against the prosecution.

患者男，40岁，2周来右侧咬物不适，冷水引起疼痛，近2日来夜间疼痛，影响睡眠，并引起半侧头痛，疼痛不能定位，检查右侧上、下磨牙面均有深的龋洞。对患牙的应急处理为