【正文】
g 41. Mrs. Smith warned her daughter _______ after drinking. A. never to drive B. to never drive C. never driving D. never drive 42. I can hardly imagine Peter _______ across the Atlantic ocean in five days. A. sail B. to sail C. sailing D. to have sailed 43. What do you think of the book? Oh, excellent. It39。s worth _______ a second time. A. to read B. to be read C. reading D. being read 44. She can39。t help _______ the house because she39。s busy making a cake. A. to clean B. cleaning C. cleaned D. being cleaned 45. She looks forward every spring to _______ the flowerlined garden. A. visit B. paying a visit C. walk in D. walking in 46. Tom insisted _______ to the party. A. on me to e B. on my ing C. me to e D. me ing 47. _______ more attention, the trees could have grown better. A. Given B. To give C. Giving D. Having given 48. Go on _______ the other exercise after you have finished this one. A. to do B. doing C. with D. to be doing 49. This page needs _______ again. A. being checked B. checked C. to check D. to be checked 50. The first textbook _______ for teaching English as a foreign language came out in the 16th century. A. having written B. to be written C. being written D. written