Question

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Fill in the gaps with the correct Past Simple or Present Simple forms of the verbs in brackets.
1. Long ago,artists___(to make) the camera obscura. The camera obscura___(to be) a small,dark room with a hole in one wall. In this room light___(to go) through the hole and a picture___(to appear) on the wall opposite the hole.
2. Nowadays,when we___(to press) the button on top of a modern camera,the shutter___(to open). The light___(to go) through the lens and the film___(to record) the picture.

Answer 1

1. made 
2. is
3. goes
4. appears
5. pressed
6. opened
7. goes
8.records