5. It _______ that Po Nagar Cham Towers were built in the 8 th century. A. considered B. was considered C. has considered D. considers 6. I suggest you _______ Ha Long Bay. It’s very picturesque. A. to visit B. visiting C. visited D. should visit 7. The chilren had been....................of the danger, but they took no notice. A. warned B. explained C. shown D. alarmed 8. Many children are afraid of....................... A. to aske B. to be asked C. asking D. being asked 9. He couldn’t............. himself laughing at the expression on his friend’s face. A. help B. stop C. escape D. avoid 10. - “When did he go away?” - “.................... minutes ago.” A. Few B. A few C. A little D. Many 11. The limestone formation of Thien Duong Cave is more .........than that of Phong Nha Cave. A. spectacular B. probable C. geological D. sight-seeing 12. During Perfume Pagoda festival, a large number of .......... flock to the pagoda to pray for happiness and prosperity in the coming year. A. spectators B. passengers C. pilgrims D. travellers 13. Did you remember....................the lights off before leaving the house? A. turning B. having turne C. turn D to turn