11) Wear a sun hat or you will get (sun/ sunburn/ sunburnt/ red). 12) To avoid (getting/ having/ making/ putting ) on weight, you should exercise regularly. 13) I had (flu/ toothache/ sick/ tired). I think I ate too many sweets. 14) Obesity is a problem. People are getting (healthier/ stronger/ fatter/ thinner). 15) (Staying/ Keeping/ Getting/ Having) in shape is our most important tip. 16) We all love them, but many of us need to spend (much/ more/ less/ many) time playing computer games. 17) The Japanese eat healthily (but/ so/ and/ or) they live for a long time. 18) Many people think sleeping (up/ with/ on/ in) at the weekend helps you recover from a busy week but I don’t agree with it. 19) Last year we (donated/ helped/ recycled/ provided) evening classes for street children. 20) The students work for the (service/ benefits/ health/ activity) of the community.