· bacteria cause bacterial infections. Do their homework 做作业，do do their homework 确实有做作业，主语是 they ，故用 do 对do their homework中的do 进行强调：确实 … Antibiotic medicines kill or keep many bacteria from growing but dont treat viruses. Antiviral medicines … Do强调句型的用法：就把助动词do放在谓语前面，主要用于陈述的肯定句。如果否定的话，就跟普通否定句一样。 一、do强调句用法及例句 1、当句子中没有其他的助动词时，我们可以在动词 … 这个do sth是“不带to的不定式”。也就是说：make sb do sth=make sb to do sth. · statin side effects can be uncomfortable but are rarely dangerous. It also is called a pap test. Whats different and whats alike between these two kinds of health care providers? Find out what causes utis, how infections are treated and ways to prevent repeat utis. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, … · pneumonia is an infection that inflames the air sacs in one or both lungs. The boys do do their homework after school every day. · you know what m. d. · a pap smear is a procedure that involves collecting cells from the cervix for testing. · 一，没有make sb to do的说法，这个没有什么理由，就是这样用。make sb do sth. Learn about symptoms of urinary tract infections. Means, but what does d. o. Healthcare professionals sometimes call it cervical cytology. Do和does的区别和用法区别是：do 是动词原形，用于第一人称、第三人称的复数 (i/you/we/they)。does 用于第三人称单数 (he/she/it) does 用于第三人称单数。do用于一般现 … Viruses cause viral infections.
