1. Living conditions around the world vary from country t...[作者空间]

1. Employees are the people who work for a company. 2. So...[作者空间]

1. Goods and services supply what people need or want. 2....[作者空间]

1. Honey bees are social insects that live in colonies. 2...[作者空间]

1. Honeybees play an interesting and important role in na...[作者空间]

1. Hey, have you decided how you're going to vote? 2. No,...[作者空间]

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1. A person's debt is how much he or she owes to others. ...[作者空间]

1. Lang Lang usually had piano lessons once a week to pre...[作者空间]

1. The heart pumps blood to all parts of the body through...[作者空间]

1. A dental cavity is a hole in a tooth. 2. A cavity is c...[作者空间]

1. Harry’ s next few trips were to different parts of the...[作者空间]

1. Harry is an American businessman. 2. His job requires ...[作者空间]