V. Choose the words given in A/B/C or D to complete the text. (1pt) The sun has provided us with many uses. Thousands of years ago, people began to dry clothes and food (1) _______ the sunlight. But it’s not until recently that we have been able to generate power from it. One of the good points of solar energy is that it is an (2) _______ source. Moreover, it produces no waste or (3) _______. Therefore, in countries with sunny climate, solar energy has great potential. However, it has come disadvantages as well, such as it doesn’t work at (4) _______ and costs very high. 1. A. on B. for C. in D. up 2. A. expensive B. non-renewable C. limited D. unlimited 3. A. pollution B. pollute C. polluted D. polluting 4. A. noon B. day C. night D. morning