Choose the best answer. 11. _____________ the Di Vinci Code? - It's an interesting book? A. Have you ever reading B. Have you ever read C. Has you read D. You have read 12. Which country doesn't speak English as an official language? A. England B. Australia C. Singapore D. Korea 13. Charles _________ his father in the shop until school ____________. A. was helping - will start B. helped - was starting C. is helping – starts D. has helped - is starting 14. When a volcanic eruption occurs, the hot _________ pours downhill. A. ash B. smoke C. dirt D. lava 15. I don't know how we can ____________ with her. She's too far away. A. keep in touch B. cope C. catch up D. keep pace 16. At 8 a.m. tomorrow, he ____________ with his friends in America A. are chatting B. will be chatting C. chatted D. chats 17. "What's she doing?" - I wondered what __________. A. was she doing B. is she doing C. she is doing D. she was doing 18. It was guessed that the fish died _____________ a powerful toxin in the sea water. A. since B. because C. because of D. as a result 19. Mount Rushmore …………….……from more than 100 kilometers away. A. can see B. sees C. was seen D. can be seen 20. He worked hard __________he could pass the final exam. A. so that B. in order to C. so as to D. as result