Learn about mask types, which masks to use and how to use them. 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用于一般现在时且主语是复数we,they, Antiviral medicines help the body.
Pyramid Spelling Worksheet Primary English Resources
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：确实有做。
Antibiotic medicines kill or keep many bacteria from growing but don't treat viruses.
That's part of the reason why there's little scientific proof. 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. 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. Find out what causes utis, how infections are treated and ways to prevent repeat utis.
What's different and what's alike between these two kinds of health care providers? Learn about symptoms of urinary tract infections. The boys do do their homework after school every day. Statin side effects can be uncomfortable but are rarely dangerous.
