Unit 7 Tenses

The black lace cactus (was/is) tiny, only 6 inches tall, and (grows/is grown) alone or in small groups in desert areas in Texas, the US.

The plant (has become / became) endangered because people (are destroying / are destroyed) its habitat.

In areas where farmers (have cleared / are cleared) the land to plant grass for cattle, the cacti (are disappeared / have disappeared).

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