linker and time expression (FOCUS 2)

1. __________ I was watching a documentary about volcanoes, the lights went out.

1. The students started their experiment __________ the teacher explained the instructions.

1. __________ we arrived at the museum, the guide had already started the tour.

1. Emma was reading about genetics __________ her brother was playing video games.

1. We’ll go to the park __________ it stops raining.

1. __________ his trip to Egypt, Tom visited the pyramids and took a lot of photos.

__________ she finished her research paper, she felt really proud of herself.

1. You should wash your hands __________ you start cooking.

1. __________ the archaeologists were digging, they discovered some ancient coins.

1. I didn’t know anything about astronomy __________ I took a course last summer.

1. __________ we reached the mountain top, the sun was setting.

1. Please wait here __________ I call your name.

__________ their holiday, they explored several historical places

1. The students will finish the project __________ the end of the semester.

1. __________ we got home, everyone was already asleep.

1. The children were laughing __________ they were watching the cartoon.