Choose the best answer to complete each of the following sentences. 1. Ha Long Bay is famous __________ its scenic rock formations. A. to B. with C. for D. by 2. Titov island in Ha Long Bay was named __________ a Russian cosmonaut, GhermannTitov. A. for B. with C. after D. by 3. You __________ look at other students’ work. It’s against the rules. A. must B. should C. shouldn’t D. mustn’t 4. The Sahara is the third largest __________ in the world. A. island B. desert C. valley D. mountain 5. When hiking overnight, don’t forget to bring the __________. It will keep you warm at night. A. sleeping bag B. hiking boots C. sun cream D. painkillers