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lway ___________ (build) by the end of last year. 8. He told me the sports meeting ____________(hold) the next month. 9. Rice ___________(grow) in the south of the States. was being built has been built had been built would be held is grown We can use modal verbs in the passive voice to talk about ability, possibility, duty, permission, etc. Firefighters could be trained using RealCine. Computers can calculate the position of the viewer at any time. The position of the viewer can be calculated at any time. Practice: 1. The viewer can touch the objects in the film. 2. The viewer may feel a real sense of achievement and happines