A. at weekends B. already C. forty-five D. perfect A. babysit B. outgoing C. majority D. livelihood A. altitude B. ladder C. powder D. atmosphere A. Spain B. cancer C. landfill D. watch over A. mostly B. favourite C. leak D. daylight A. pocket B. swam C. take away D. drawback A. decision-making B. species C. dynasty D. northern A. virus B. shine C. blossom D. sales A. chain B. discourage C. allergic D. leaky A. blue B. heavier C. presume D. lift