Q 1.Petrichor is the scent of rain that we smell after a downpour. When plant-secreted oils and chemicals from the soils are released, they combine _________ rain's pleasant smell.
Q 2.Martha stays in a healthcare institution for the old. She is sick, so she takes five different pills every five hours, everyday. She __________ her third regimen of medication at 3:00 this afternoon.
Q 3.Space transport services company Space X will be flying two passengers to the moon by the end of 2020. The capsule will be launched from NASA's space center, _________ also took off 40 years ago.