Fill in the blanks with the proper form of the given verbs .
1. I am afraid the book you are looking for _______ yesterday afternoon. (lend)
2. The basement was used _______ weapons during the wartime. (store)
3. ________ of the development of science, we must look back into history. (speak)
4. The river bank ________ twice since last October. (strengthen)
5. Do you feel like ________ the TV program about spiders? (watch)
6. It ________ not long before he found himself in a trap. (be)
7. She likes to enjoy the light music with all the lights ________ off in the evening. (turn)
8. It is relaxing to sit in the shade on a summer's day _______ with a few close friends. (chat)
9. Selecting a mobile phone for personal use is no easy task because technology ________ so rapidly.
(change)
10. Since it looks like rain, you had better, I think, ________ fishing. (not, go)
