1.(a) I have not had tea / (b) since /(c) two days / (d) no error.
2. A moment delay would have proved (a) / costly for her life if she had not escaped (b)/ the accident quickly by a close shave. (c)/ no error (d)
3. Either the operator (a)/ or the foreman are (b)/ to blame for the accident (c)/ no error (d)
4. The beautiful surrounding of the place (a)/ enchanted my family so much that (b)/ they decided to stay for one more week. (c)/ no error (d)
5. The parents decided it was worth the risk (a)/ because these children would have succumbed their (b) / disease before adulthood. (c)/ no error (d)