Examples in our textbook

1. When he was orbiting in the capsule, he took photographs of planet earth. 2. When yang landed, Premier Wen Jiabao telephoned the Control Centre to offer his congratulations. 3. When Yang took off from Jiuquan in northwest China at 9 am yesterday, China became the …. 4. While he was travelling in space, Yang spoke to two astronauts aboard the …. 5. While she was waiting a taxi outside, she met Sam Parrish.