1.Ten new houses (build) __________________ in the town every year. 2. If I (be)____________you, I would wear earplugs when going to the concert. 3. By the time we (reach)_____________ the village, the rain (stop)_______________. 4. The famous Sydney Opera House _______________ as an arts centre since 1973 (serve) 5. Are all types of pollution_____________ to the health of humans and animals? (Harm) 6. They will take part in an___________summer camp with foreign students. (Internation) 7.There is still room for _________________ in your work. (Improve) 8.The first experiment was ________________, so we need to do another one. (Success)