1.either…… or , both…… and ,Since , when/if , If , so , and , but
2. Hurry up, or you will be late for the meeting.
You can go by boat or by bus.
She doesn't like reading, but she likes singing.
Both you and your sister have to go with us.
3.workers, classes, potatoes,factories, wives, boxes, homes, fish, photos, boys, heroes, watches, sheep, feet, countries, tomatoes, mouths, leaves, radios, women doctors
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