16. When the man ______ to now and again, he repeatedly called for his son. A. woke B. recovered C. went D. came 17. It’s no use ______ to him again. He won’t agree. A. talking B. to talk C. talk D. to have talked 18. ______ to remind him, the church clock struck seven. A. As if B. Even though C. Only if D. So that 19. He stayed in the countryside for quite ______. A. some time B. sometime C. sometimes D. some times 20. They have arranged ______ the writer to meet a number of his readers. A. at B. in C. to D. for
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